Question

According to the market research firm NPD Group, Americans ate an average of 211 meals in restaurants in 2001. The following data show the number of meals eaten in restaurants as determined from a random sample of Americans in 2014:
a. Using σ = 0.05, test the hypothesis that the number of meals eaten at restaurants by Americans has not changed since 2001.
b. Estimate the p value for this test using Table 5 in Appendix A.
c. Determine the precise p value for this test using Excel.
d. Use PHStat to validate these results.
e. What assumptions need to be made to perform this analysis?


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  • CreatedJuly 17, 2015
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