The average American gets a haircut every 39 days. Do college students get their hair cut less frequently? The data below shows the results of a survey of college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 40, 43, 57, 60, 39, 35, 51, 23, 30, 43, 56, 48, 36, 31, 44, 50, 60 What can be concluded at the 0.05 level of significance? Helpful Videos:CalculationsLinks to an external site., Set-upLinks to an external site., InterpretationsLinks to an external site. HintLinks to an external site. Textbook PagesLinks to an external site. H0: mu.gif = 39 Ha: mu.gif [ Select ] 39 Test statistic: [ Select ] p-Value = [ Select ] [ Select ] Conclusion: There is sufficient evidence to make the conclusion that the population mean number of days between haircuts for college students is more than 39.

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