Statistics Problems - 10

5/23/2019 Assignment Print View

ezto.mheducation.com/hm.tpx?todo=c15SinglePrintView&singleQuestionNo=9.&postSubmissionView=13252709085253484&wid=1325271139924361… 1/1

9. Award: 0.20 points    

www.golfsmith.com receives an average of 6.5 returns per day from online shoppers. For a sample of 12 days, it received the following numbers of returns.

0 4 3 4 9 4 5 9 1 6 7 10

Click here for the Excel Data File

At the 0.01 significance level, can we conclude the mean number of returns is less than 6.5?

H0. The mean rate 6.5.

References

Worksheet Difficulty: 2 Intermediate

Learning Objective: 10-06 Use a t statistic to test a hypothesis.