When testing the mean for business data, statisticians sometimes get confused ab

When testing the mean for business data, statisticians sometimes get confused about when to use the independent-samples t-tests, and one-sample t-tests. State when it is appropriate to use each of the three t-tests. This could be for business-related problems or questions relating to your dissertation topic.  Give a brief description of a business-related problem, then state which of the t-tests you would use and why?  Finally, select what you would propose to be the best statistical test to address that problem and provide an explanation as to why you believe that would be best.
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