Category: Statistics

This assignment requires a statistics-minded person to answer questions 1-3.
The message from the Professor-
Could you revisit this post?
The paired samples t-test looks at the difference between the means. Both of the p-values are significant. Meeting these assumptions is important for validity, but I do not see how the output describes what you are saying. Here is a link with a brief explanation of the paired samples t-test –> https://www.ibm.com/docs/en/spss-statistics/saas?topic=tests-paired-samples-t-test

Important note: don’t use AI, I will provide the pdf with all the questions please provide me the answers in order so I can copy and paste them into my workbook that I will submit in the final submission, there will be some code cells try to do the work as much as you can manually use the code cells if necessary, also provide the codes in the correct order so I can copy and paste them into the workbook label the question so I can know which is for which.
The assignment is in the workbook. Make sure to follow all the instructions:
All answers must be typed directly into the provided spaces.
Only long or complex handwritten equations/graphs can be submitted as a PDF attachment.
Python codes must be written in the cells provided on the Forum. Submissions of Python code in PDF format will not be accepted.
This problem set is intended to be done fully solo – that is, without consulting classmates. This is because we want to develop our individual capacities for grappling with hard problems to bring more to the table when collaborating with our peers later. This will also allow instructors to give more personalized feedback on your solutions.
As you work the problems and write up your solutions, try to use the correct vocabulary and notation for your ideas. Ensure the submitted PDF is readable and properly formatted.
Assignment Information
Weight:15%
Learning Outcomes Added
Distributions: Identify different types of distributions and make inferences based on samples from distributions appropriately.
Probability: Apply and interpret fundamental concepts of probability, including conditional and bayesian probabilities.
ModelSelection: Apply appropriate statistical theory and methods to determine which model generated observed data.
ParameterEstimation: Apply appropriate statistical theory and methods to determine which parameter values generated observed data.
CompTools: Use appropriate computational tools to solve problems in Probability and Statistics.
MathTools: Use appropriate mathematical notation (including DAGs) and tools to solve problems in Probability and Statistics.
ProfessionalWorkProduct: Follows the established guidelines for the task and academic conventions in writing and presentations.

Important note: don’t use AI, I will provide the pdf with all the questions please provide me the answers in order so I can copy and paste them into my workbook that I will submit in the final submission, there will be some code cells try to do the work as much as you can manually use the code cells if necessary, also provide the codes in the correct order so I can copy and paste them into the workbook label the question so I can know which is for which.
The assignment is in the workbook. Make sure to follow all the instructions:
All answers must be typed directly into the provided spaces.
Only long or complex handwritten equations/graphs can be submitted as a PDF attachment.
Python codes must be written in the cells provided on the Forum. Submissions of Python code in PDF format will not be accepted.
This problem set is intended to be done fully solo – that is, without consulting classmates. This is because we want to develop our individual capacities for grappling with hard problems to bring more to the table when collaborating with our peers later. This will also allow instructors to give more personalized feedback on your solutions.
As you work the problems and write up your solutions, try to use the correct vocabulary and notation for your ideas. Ensure the submitted PDF is readable and properly formatted.
Assignment Information
Weight:15%
Learning Outcomes Added
Distributions: Identify different types of distributions and make inferences based on samples from distributions appropriately.
Probability: Apply and interpret fundamental concepts of probability, including conditional and bayesian probabilities.
ModelSelection: Apply appropriate statistical theory and methods to determine which model generated observed data.
ParameterEstimation: Apply appropriate statistical theory and methods to determine which parameter values generated observed data.
CompTools: Use appropriate computational tools to solve problems in Probability and Statistics.
MathTools: Use appropriate mathematical notation (including DAGs) and tools to solve problems in Probability and Statistics.
ProfessionalWorkProduct: Follows the established guidelines for the task and academic conventions in writing and presentations.

A manufacturing company regularly conducts quality control checks at specified periods on the products it manufactures. Historically, the failure rate for LED light bulbs that the company manufactures is 5%. Suppose a random sample of 10 LED light bulbs is selected. What is the probability that
a. none of the LED light bulbs are defective?
b. exactly one of the LED light bulbs is defective?
c. two or fewer of the LED light bulbs are defective?
d. three or more of the LED light bulbs are defective?
Q2) Assume that the number of new visitors to a website in one minute is distributed as a Poisson variable. The mean number of new visitors to the website is 4.0 per minute. What is the probability that in any given minute
a. zero new visitors will arrive at the website?
b. exactly one new visitor will arrive at the website?
c. two or more new visitors will arrive at the website?
d. fewer than three new visitors will arrive at the website?

LEVELS OF DATA/MEASUREMENT
…please tell me what “LEVELS OF DATA/MEASUREMENT” is EACH VARIABLE ON THE ATTACHED SURVEY.
— Write the “level” NEXT to the variable – save, then UPLOAD IT
. — I AM NOT ASKING YOU TO FILL IT OUT!!
—
Instructions
a. UPLOAD the SURVEY – indicating the LEVELS OF DATA/MEASUREMENT of each variable
Survey
INTERVIEW PACKAGE: Recruiting Letter and Scales

ALL CORRECTIONS/EDITS ARE APPRECIATED

​

RECRUITING STATEMENT

Social Statistics
Profile of Dillard University Students Evaluative Survey/Questionnaire

Dr. Steve A. Buddington and his students in the spring 2019 Social Statistics Class ask that you respond to this survey. This is a PILOT STUDY – assessing the profile of a purposive sample of students on the variables delineated – will only be used internally and will not be published.

Please complete the following questionnaires or surveys; if you are a Dillard University student. This survey is confidential. Your answers will be summarized with the various others who completed the survey/questionnaire and USED ONLY FOR TEACHING AND LEARNING OF DATA ANALYSIS Do not write any identifying information on this survey – anonymity and confidentiality are maintained.

***********************************************
Please read the following important information before you answer the surveys.

1. Answer the questions as honestly as possible. There are no right or wrong answers.

2. Don’t spend too much time thinking about the answer. Give the first answer that comes
to mind.

2. Please fill out all questions as completely as possible. Don’t skip any questions, and please provide
answers to all questions. Make sure you answer every statement with only one solution.

4. Although some questions may seem much like others, there are no statements precisely alike.

Thank you for your cooperation!!

**************************************************
2

PROFILE OF DILLARD STUDENTS

Social Statistics Data Collection/Code Sheet; Spring 2015

** If you are NOT a Dillard University Student, please do not complete this survey
________________

Age: ____​Gender: ​Male​____
​Female​ ___

Height:_____ (in inches)​Weight:_____ (in lbs)

Grade Point Average:_____​Annual Income:__________​

Study Time ( in minutes): ___________​

Time spent with Advisor (in minutes):___________

ACT Score:____________

Marital Status: ​Single​_____
Married​_____
Separated​_____
Divorced​____

Classification:​Freshman​______
Sophomore​______
Junior​______
Senior​______

The assignment requirement all in the Assignment1 – descriiptive statistics, and if have any questions just send message to me.

Week 3 Discussion Board 2
Sampling Distributions for Means
Welcome to the Week 3 Discussion Board! This week you will completing an activity on the following worksheet and applet linked within. Make your first substantive and informative post by Thursday at 11:59 pm EST. Then, respond to at least two classmates with new questions or solutions by Sunday at 11:59 pm EST.
Tasks for Your Initial Posting:
Make a copy of Sampling Distribution for Means Download Sampling Distribution for Means.
After completing the activity copy and paste your answer from #9 in this week’s discussion post.
Post your screen shots from questions 2, 5, and 8.
Please also attach your copy of the entire activity.

A randomly selected individual, after going through an experimental treatment, has a score of 27 on a particular measure. The scores of people in general on this measure are normally distributed with a mean of 19 and a standard deviation of 4. The researcher predicts an effect, but no particular direction. Using the 5% significance level, what should you conclude?
1.Please define the research and null hypotheses
2.Determine the characteristics of the comparison distribution.
3.Determine the cutoff sample scores on the comparison distribution at which the null hypothesis should be rejected.
4.Determine your sample’s score on the comparison distribution
5.Determine whether to reject the null hypothesis. What does this mean? Please describe.
6.What is the region of rejection when hypothesis testing? What is the region(s) of rejection from the question above?
7.When you make your conclusion about the null hypothesis, can you say that your results prove the hypothesis? Explain why or why not.
8.What does it mean if the results of a study are inconclusive?

Complete the homework questions from the attachments I included.
The directions are in included in the document called statistics J1 and all the answers should be submitted within this word document. This includes copy and pasting a table as necessary per directions
Excel documents are included to generate the answer.
Included is also a definition list in case the headers are not self explanatory
4 attachment total

Complete the homework questions from the attachments I included.
The directions are in included in the document called statistics J1 and all the answers should be submitted within this word document. This includes copy and pasting a table as necessary per directions
Excel documents are included to generate the answer.
Included is also a definition list in case the headers are not self explanatory
4 attachment total