Question: At Oxnard University a sample of 18 senior accounting majors

At Oxnard University, a sample of 18 senior accounting majors showed a mean cumulative GPA of 3.35 with a standard deviation of 0.25.
(a) At α = .05 in a two-tailed test, does this differ significantly from 3.25 (the mean GPA for all business school seniors at the university)?
(b) Use the sample to construct a 95 percent confidence interval for the mean. Does the confidence interval include 3.25?
(c) Explain how the hypothesis test and confidence interval are equivalent.

View Solution:


Sale on SolutionInn
Sales0
Views34
Comments
  • CreatedAugust 19, 2015
  • Files Included
Post your question
5000