Category: Mathematics

Please use this template to help answer the questions listed in the lab instructions. The “steps” below refer to the steps listed in the lab instructions. Type your answers and post your screenshots in the spaces given.
1.Write a paragraph summarizing what you learned from the articles provided. Consider the use of confidence intervals in health sciences with these articles as inspiration and insights.
Data Collection
Use the data set you collected for the Week 5 lab (heights of 10 different people plus the 10 heights provided by your instructor). (NOTE: This is NOT the data used in the lab video, which is about midterm grades. Do not use the midterm grades data.)
Provide a screenshot of your Week 5 Data (20 Heights)
Summarize the Preliminary Calculations (Round to 2 decimal places):
Sample Mean: ______ Standard Deviation: _______
Your Height: _________
Please answer the following questions in complete sentences: 1. Discuss your method of collection for the values that you are using in your study (systematic, convenience, cluster, stratified, simple random).
2. What are some faults with this type of data collection?
3.What other types of data collection could you have used, and how might this have affected your study?
Calculation of 95% Confidence Interval
1.Give a point estimate (mean) for the average height of all people at the place where you work. What is your point estimate, and what does this mean?
2.Find a 95% confidence interval for the true mean of heights. What is the interval? [Provide a Screenshot of your work from the t value Confidence Interval for µ from the Confidence Interval tab on the Week 6 Excel spreadsheet]
3. Give a practical interpretation of the 95% confidence interval [Write a complete sentence].
Calculation of 99% Confidence Interval
Now, change your confidence level to 99% for the same data.
1.Find a 99% confidence interval for the true mean of heights. What is the interval? [Provide a Screenshot of your work from the t value Confidence Interval for µ from the Confidence Interval tab on the Week 6 Excel spreadsheet]
2. Give a practical interpretation of the 99% confidence interval [Write a complete sentence].
Compare Margins of Error
1.Would the margin of error be larger or smaller for the 99% CI? Explain your reasoning.
2.As the confidence level increases, what happens to the Margin of Error?
Save and Submit
Be sure your name is on the Word document, save it, and then submit it. In the assignment module, click “start assignment” and then “upload file” and “submit assignment”.

Question 1
25 Points
Discuss the advantages, limitations, and researcher considerations when using a qualitative methodological research strategy.
Your response must be at least 250 words in length.
Bottom of Form
Top of Form Question 2
25 Points
Discuss the three primary research designs highlighted in the Unit I Lesson and potential shortcomings of each.
Your response must be at least 250 words in length.
Bottom of Form Top of Form Question 3
25 Points
Explain how sampling design, inferential statistics, and generalization work together to form the foundation of quantitative research. Your response must be at least 250 words in length.
Bottom of Form Top of Form Question 4
25 Points
Compare and contrast the four levels of scale measurement.
Your response must be at least 250 words in length.

I basically will provide you with a Microsoft Word that I created, which includes all my personal 2023 expenses summary, that I plan to use towards tax deduction. Your job will be to organize the data by subcategories and, most importantly, by date (from less recent to most recent). I will provide 2 examples of how I want the final documents to look like. Please take into consideration that I say final documents (yes, plural) since I’d like you to create 1 Microsoft Word document and 1 Microsoft Excel document. However, the data, which you will entirely get from my attached MS Word doc below, will be the same one you will use for both documents you’ll create so this task won’t take you a great amount of time since all the data is already provided to you and all you have to do is organize it.
Besides neatly organizing all this data, which will take you very little time, the other task that I need done from your end, is for you to make 100% sure that my total final amount (which is basically the sum of all the numbers you”l find in my attached Microsoft Word document), is 100% accurate. Please notice that I have included such number at the very end of my attached MS Word doc; however, I came up with this number by adding all the numbers up manually, so I need you to sum up all the numbers and tell me if I made a mistake, even if it’s a very similar number. Without further to add, please find attached my 2023 expenses summary Microsoft Word document.

Progress Check
Use this activity to assess whether you and your peers can: Use an applet to generate random samples along with their 95% confidence intervals. Interpret the results.
Directions
Use the drop-down menu to learn about the three steps needed to complete this assignment.
Three steps to complete the assignment
Prompt
Each time you select the Click to generate a random sample of 100 students button below, the applet
generates a random sample of 100 part-time students,
calculates the proportion of the sample that are female, and
calculates the 95% confidence interval for the sample.
Use the applet to select 20 different random samples of 100 part-time college students. For each sample, note whether the population proportion is contained within the sample’s 95% confidence interval. How many of the 20 confidence intervals do not contain the population proportion? Is this what you expected? Explain.

Module 15 Homework 2 – Calculating & Interpreting a Two-Tailed Probability for a Sampling Distribution (21 of 23) Start Assignment
Due Sunday by 11:59pm
Points 10
Submitting a text entry box or a file upload
Available after Mar 1 at 12am
Progress Check
Use this activity to assess whether you and your peers can: Based on information about a sampling distribution of sample proportions, use the Normal Distribution Calculator to find a two-tailed probability.
Directions
Use the drop-down menu to learn about the three steps needed to complete this assignment.
Three steps to complete the assignment
Prompt
Recall the use of data from the National Health Survey to estimate behaviors such as alcohol consumption, cigarette smoking, and hours of sleep for all U.S. adults. In the 2005-2007 report, they estimated that 30% of all current smokers started smoking before the age of 16.
Suppose that we randomly select 100 U.S. adults who are smokers and find that 25% of this sample started smoking before the age of 16 (an error of 5% compared to the 2005-2007 report).
Is this much error surprising? Find the probability that a sample proportion will be an over- or underestimate of the parameter by more than 5%.

You operate a network cabling company, and you’ve received a request from a client to set up computers in a meeting room. The room’s ceiling is 10 feet above the floor, and you must run cables from the network rack on the ground level to Station A, Station B, and Station C. To maintain a clean and concealed appearance, the cables must run diagonally through the ceiling, avoiding the walls, to reach Station A and Station B. The distance from the network rack to Station C is 25 feet. Your task is to create a detailed report outlining the project’s cost for your customer, using only WORD, EXCEL, and POWERPOINT.

In this project, we’ll use our unique IAT random samples to demonstrate what we learned in Unit 4 (Module 11).
WARNING: Since this project is equivalent to an exam, I will not be able to help you. However, you can still rely on your classmates for help, and I can answer clarification questions.
Progress Check
Use this activity to assess whether you can:
Describe the sampling distribution for sample proportions and use it to identify unusual (and more common) sample results.
Distinguish between a sample statistic and a population parameter.
Use StatCruch to find a confidence interval to estimate a population proportion when conditions are met.
Interpret the confidence interval in context.
Interpret the meaning of a confidence level and relate it to the margin of error when testing a claim.
Given a claim about a population, determine the null and alternative hypotheses.
Conduct a hypothesis test for a population proportion and state a conclusion in context.
Interpret the P-value as a conditional probability.
Recognize type I and type II errors and articulate the consequence of either error.
Directions
WARNING: The directions for Unit Projects differ from the directions for homework and lab assignments.
Use the drop-down menu to learn about the four steps needed to complete this assignment.
Four steps to complete the assignmentData
For the remainder of this assignment, all links open in a new tab.
Login and open StatCrunch (directions).
Open your IAT sample data set in StatCrunch (directions). Prompts
Each IAT data set has a different prompt for this project. Select the appropriate drop-down triangle below to see the prompt for your data set.
GENDER-CAREER IAT QUESTIONS & VARIABLES
Open for the Gender-Career promptGENDER-SCIENCE IAT QUESTIONS & VARIABLES
Open for the Gender-Science promptRACE IAT QUESTIONS & VARIABLES
Open for the Race promptSEXUALITY IAT QUESTIONS & VARIABLES
Open for the Sexuality promptWEAPONS IAT QUESTIONS & VARIABLES
Open for the Weapons promptWEIGHT IAT QUESTIONS & VARIABLES
Open for the Weight promptStatCrunch Directions
Here is a PDF document with all StatCrunch directionsLinks to an external site..
Units 6 & 7 Project Discussion Board
Use the Units 6 & 7 Project discussion board to ask questions or provide feedback about this project.
Review Feedback
Instructor feedback is only available after an assignment is graded.
Use these directions (opens in a new tab) to learn how to review feedback.
Click the “Next” or > button to continue.
Content by Cuyamaca College math faculty and licensed under the Creative Commons 4.0 International LicenseLinks to an external site..
Rubric
Units 6/7 Project
Units 6/7 Project
CriteriaRatingsPts
This criterion is linked to a Learning OutcomeQuestion 1aIAT data set is identified.
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 1bStatCrunch output is provided and is correct.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 1cCorrect work is shown for checking conditions
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 1dConfidence interval was correctly stated in context.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 1eQuestion was correctly answered with explanation
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 2aHypotheses were correctly stated in words and symbols
5 ptsComplete
3 ptsPartial Credit
Either the words or symbols are missing/incorrect.
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 2bCorrect work is shown for checking conditions
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 2cStatCrunch output is provided and is correct.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 2dP-value was provided and interpreted correctly.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 2eA correct conclusion was provided that included the p-value and referenced the population and the appropriate variable.
5 ptsComplete
3 ptsPartial Credit
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 3aCorrectly identified the type of error with a brief explanation
2.5 ptsComplete
1.5 ptsPartial Credit
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 3bError type was interpreted in the context of the problem.
2.5 ptsComplete
1.5 ptsPartial Credit
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeSelf-evaluationThe final draft begins (or ends) with a self-evaluation of your first draft. The self-evaluation describes how you demonstrated attainment of the learning objectives in the “Progress Check” section of the assignment, OR what you needed to correct in order to demonstrate attainment of the learning objectives.
5 ptsComplete
3 ptsPartial Credit
The self-evaluation does not describe how you demonstrated attainment of the learning objectives in the “Progress Check” section of the assignment, or what you needed to correct in order to demonstrate attainment of the learning objectives.
0 ptsIncomplete
5 pts
Total Points: 50

The activity•Ask your students to arrange themselves into a rectangle. •Ask someone else to divide the group into half.•Reform the rectangle, then ask another student to divide the group in half in a different way. •Ask the students what is the same and what is different about the new half of the group.•Now ask another student to divide the eight students into quarters (fourths). Again ask whether there is a different way to do this division, and what is the same and what is different about the new way of dividing into quarters. •Now change the number of students and go through the process above again. It may be that dividing into quarters is difficult but depending on the chosen number, continue asking for1/2, 1/4, 1/3 and so on, until a fraction that cannot be done is reached. Ask the students why you cannot find that fraction of these students. Dividing one student into bits is not allowed! •Ask the students to work in groups of 18. You could appoint a leader in each group to note down ideas if the class does not split evenly into groups of 18. Ask them to work out all the fractions they can divide 18 students into. the problems I need answer is : The problem is what is ½ of 8
The problem is what is 1/3 of 8
The problem is what is ¼ 0f 8 The problem is what is ¼ 0f 9 The problem is what is 1/3 of 9 The problem is what is ¼ of 9 What is ½ , 1/3, ¼ of 18
Ask them to work out all the fractions they can divide 18 students into? What is this answer?

Progress Check
Use this activity to assess whether you and your peers can: Calculate and use a confidence interval to estimate a population proportion.
Identify the appropriate tool to calculate a confidence interval.
Directions
Use the drop-down menu to learn about the three steps needed to complete this assignment.
Three steps to complete the assignmentPrompt
Question 1
In June 2021, Gallup published an online article titled Public Backs Requiring COVID-19 Vaccine to Attend SchoolLinks to an external site. by Jeffrey M. Jones.
According to the article, 61% of U.S. adults who responded to the survey favor requiring College students to be vaccinated in order to attend classes (including classes in fall 2021). A representative random sample of 3,572 U.S. adults, aged 18 and older, were surveyed.
Are conditions met for calculating a confidence interval? Support your conclusion mathematically and show your work.
If conditions are met, use your graphing calculator to calculate a 95% confidence interval that estimates the proportion of U.S. adults who favor requiring College students to be vaccinated in order to attend classes. State your results in context.
Question 2
Login and open StatCrunch (directions).
Open your IAT sample data set in StatCrunch (directions) We will use a 90% confidence interval to estimate the population proportion of participants born female in our chosen IAT data set.
So, you are tasked with using your IAT sample to calculate a 90% confidence interval that estimates the population proportion of participants born female in your particular IAT. But, you are missing a piece of information that would allow you to use your graphing calculator to find the confidence interval. What piece of information is missing?
Even though we cannot readily use our graphing calculators, StatCrunch can calculate the confidence interval for us! Use StatCrunch to find the 90% confidence interval for the population proportion of female participants in your particular IAT (directions – opens in a new tab). Highlight and copy everything in your StatCrunch output window and paste it into your response.
Identify the sample proportion (�^) in the StatCrunch output table. Then determine whether conditions are met for using the confidence interval to estimate the population proportion of female participants in your chosen IAT. Show your work.
If conditions are met, estimate the population proportion of female participants in your particular IAT, and state your conclusion in context. If conditions are not met, explain what a researcher could do so that conditions are met.
Based on your analysis, do you think the population of participants in your chosen IAT is representative of the U.S. population? Explain. List of StatCrunch Directions
Click here for StatCrunch DirectionsModule 17 Discussion Board
Use the Module 17 discussion board (opens in a new tab) to ask questions or provide feedback about the problems in any Module 17 activity – including this peer-reviewed assignment.
Review Feedback
Instructor feedback is only available after an assignment is graded.
Use these directions (opens in a new tab) to learn how to review feedback.
Click the “Next” or > button to continue.
Content by Cuyamaca College math faculty and licensed under the Creative Commons 4.0 International LicenseLinks to an external site.. Rubric
Formative Assessments w/ StatCrunch
Formative Assessments w/ StatCrunch
CriteriaRatingsPts
This criterion is linked to a Learning OutcomeAnswering the Prompt
8 ptsFull Credit
The first submission demonstrates a good-faith effort to address each part of the Prompt. Either in the first draft or the optional final draft, all parts of the “Prompt” are addressed and the responses demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. The answers are correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.
6.5 ptsMostly Correct
The first submission demonstrates a good-faith effort to address most of the Prompt. In the optional final draft all parts of the “Prompt” are addressed, and the responses demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. The answers are mostly correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.
3.5 ptsOne or more incorrect
The first submission demonstrates a good-faith effort to respond to a smaller portion of the Prompt. In the first draft or the optional final draft, one or more parts of the “Prompt” are not addressed or are incorrect. Or, answers do not demonstrate attainment of the learning objectives in the “Progress Check” section of the assignment. Or, answers are correct, but the writing/work is unclear, incorrect, or difficult to follow.
0 ptsNo Marks
The first submission does not demonstrate a good-faith effort to address the Prompt.
8 pts
This criterion is linked to a Learning OutcomeStatCrunch
2 ptsFull Credit
StatCrunch graphs and/or tables are correct and embedded with your work.
1 ptsPartial Credit
StatCrunch graphs and/or tables are incorrect or missing important information.
0 ptsNo Credit
No StatCrunch information is embedded with your post. Or all StatCrunch work is incorrect.
2 pts
Total Points: 10
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In this project, we’ll use our unique IAT random samples to demonstrate what we learned in Unit 4 (Module 11). WARNING: Since this project is equivalent to an exam, I will not be able to help you. However, you can still rely on your classmates for help, and I can answer clarification questions.
Progress Check
Use this activity to assess whether you can:
Describe the sampling distribution for sample proportions and use it to identify unusual (and more common) sample results.
Distinguish between a sample statistic and a population parameter.
Use StatCruch to find a confidence interval to estimate a population proportion when conditions are met.
Interpret the confidence interval in context.
Interpret the meaning of a confidence level and relate it to the margin of error when testing a claim.
Given a claim about a population, determine the null and alternative hypotheses.
Conduct a hypothesis test for a population proportion and state a conclusion in context.
Interpret the P-value as a conditional probability.
Recognize type I and type II errors and articulate the consequence of either error.
Directions
WARNING: The directions for Unit Projects differ from the directions for homework and lab assignments.
Use the drop-down menu to learn about the four steps needed to complete this assignment.
Four steps to complete the assignmentData
For the remainder of this assignment, all links open in a new tab.
Login and open StatCrunch (directions).
Open your IAT sample data set in StatCrunch (directions). Prompts
Each IAT data set has a different prompt for this project. Select the appropriate drop-down triangle below to see the prompt for your data set.
Gender-Career IAT Questions & Variables
Open for the Gender-Career promptGender-Science IAT Questions & Variables
Open for the Gender-Science promptRace IAT Questions & Variables
Open for the Race promptSexuality IAT Questions & Variables
Open for the Sexuality promptWeapons IAT Questions & Variables
Open for the Weapons promptWeight IAT Questions & Variables
Open for the Weight promptStatCrunch Directions
Here is a PDF document with all StatCrunch directionsLinks to an external site..
Units 6 & 7 Project Discussion Board
Use the Units 6 & 7 Project discussion board to ask questions or provide feedback about this project.
Review Feedback
Instructor feedback is only available after an assignment is graded.
Use these directions (opens in a new tab) to learn how to review feedback.
Click the “Next” or > button to continue.
Content by Cuyamaca College math faculty and licensed under the Creative Commons 4.0 International LicenseLinks to an external site.. Rubric
Units 6/7 Project
Units 6/7 Project
CriteriaRatingsPts
This criterion is linked to a Learning OutcomeQuestion 1aIAT data set is identified.
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 1bStatCrunch output is provided and is correct.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 1cCorrect work is shown for checking conditions
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 1dConfidence interval was correctly stated in context.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 1eQuestion was correctly answered with explanation
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 2aHypotheses were correctly stated in words and symbols
5 ptsComplete
3 ptsPartial Credit
Either the words or symbols are missing/incorrect.
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 2bCorrect work is shown for checking conditions
2.5 ptsComplete
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 2cStatCrunch output is provided and is correct.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 2dP-value was provided and interpreted correctly.
5 ptsComplete
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 2eA correct conclusion was provided that included the p-value and referenced the population and the appropriate variable.
5 ptsComplete
3 ptsPartial Credit
0 ptsIncomplete
5 pts
This criterion is linked to a Learning OutcomeQuestion 3aCorrectly identified the type of error with a brief explanation
2.5 ptsComplete
1.5 ptsPartial Credit
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeQuestion 3bError type was interpreted in the context of the problem.
2.5 ptsComplete
1.5 ptsPartial Credit
0 ptsIncomplete
2.5 pts
This criterion is linked to a Learning OutcomeSelf-evaluationThe final draft begins (or ends) with a self-evaluation of your first draft. The self-evaluation describes how you demonstrated attainment of the learning objectives in the “Progress Check” section of the assignment, OR what you needed to correct in order to demonstrate attainment of the learning objectives.
5 ptsComplete
3 ptsPartial Credit
The self-evaluation does not describe how you demonstrated attainment of the learning objectives in the “Progress Check” section of the assignment, or what you needed to correct in order to demonstrate attainment of the learning objectives.
0 ptsIncomplete
5 pts
Total Points: 50
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