Question: An associate dean of a university wishes to compare the

An associate dean of a university wishes to compare the mean on the standardized final exams in microeconomics and macroeconomics. He has access to a random sample of 40 scores from each of these two courses. A portion of the data is shown below; the complete data set, labeled Economics, can be found on the text website.
Micro Macro
85......... 48
78......... 79
: ......... :
75......... 74

a. Use Excel to construct 95% confidence intervals for the mean score in microeconomics and the mean score in macroeconomics.
b. Explain why the widths of the two intervals are different.




Sale on SolutionInn
Sales0
Views91
Comments
  • CreatedJanuary 28, 2015
  • Files Included
Post your question
5000