The dean of a university estimates that the mean number of classroom hours per week for full-time faculty is 11.0. As a member of the student council, you want to test this claim. A random sample of...

22

Extracted text: The dean of a university estimates that the mean number of classroom hours per week for full-time faculty is 11.0. As a member of the student council, you want to test this claim. A random sample of the number of classroom hours for eight full-time faculty for one week is shown in the table below. At a = 0.01, can you reject the dean's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 10.7 8.3 13.9 7.5 7.7 9.5 14.4 9.9P (a) Write the claim mathematically and identify Ho and Ha. Which of the following correctly states Ho and H,? О В. Но: и#11.0 Ос. Но: и> 11.0 Ο Α. H : μs 11.0 Ha: u>11.0 Ha: H = 11.0 Ha: us11.0 Ο Ε. Ho:μ2 11.0 OF. Ho: H<11.0 ο="" d="" .="" h="" :="" μ="11.0" ha:="" h#11.0="" ha:=""><11.0 ha: h211.0 (b) use technology to find the p-value. p= (round to three decimal places as needed.) (c) decide whether to reject or fail to reject the null hypothesis. which of the following is correct? o a. reject h, because the p-value is greater than the significance level. o b. fail to reject ho because the p-value is greater than the significance level. oc. reject h, because the p-value is less than the significance level. o d. fail to reject h, because the p-value is less than the significance level. (d) interpret the decision in the context of the original claim. o a. at the 1% level of significance, there is not sufficient evidence to reject the claim that the mean number of classroom hours per week for full-time faculty is less than 11.0. o b. at the 1% level of significance, there is sufficient evidence to reject the claim that the mean number of classroom hours per week for full-time faculty is greater than 11.0. o c. at the 1% level of significance, there is not sufficient evidence to reject the claim that the mean number of o d. at the 1% level of significance, there is sufficient evidence to reject the claim that the mean number of classroom hours per week for full-time faculty is 11.0. classroom hours per week for full-time faculty is 11.0. ha:="" h211.0="" (b)="" use="" technology="" to="" find="" the="" p-value.="" p="(Round" to="" three="" decimal="" places="" as="" needed.)="" (c)="" decide="" whether="" to="" reject="" or="" fail="" to="" reject="" the="" null="" hypothesis.="" which="" of="" the="" following="" is="" correct?="" o="" a.="" reject="" h,="" because="" the="" p-value="" is="" greater="" than="" the="" significance="" level.="" o="" b.="" fail="" to="" reject="" ho="" because="" the="" p-value="" is="" greater="" than="" the="" significance="" level.="" oc.="" reject="" h,="" because="" the="" p-value="" is="" less="" than="" the="" significance="" level.="" o="" d.="" fail="" to="" reject="" h,="" because="" the="" p-value="" is="" less="" than="" the="" significance="" level.="" (d)="" interpret="" the="" decision="" in="" the="" context="" of="" the="" original="" claim.="" o="" a.="" at="" the="" 1%="" level="" of="" significance,="" there="" is="" not="" sufficient="" evidence="" to="" reject="" the="" claim="" that="" the="" mean="" number="" of="" classroom="" hours="" per="" week="" for="" full-time="" faculty="" is="" less="" than="" 11.0.="" o="" b.="" at="" the="" 1%="" level="" of="" significance,="" there="" is="" sufficient="" evidence="" to="" reject="" the="" claim="" that="" the="" mean="" number="" of="" classroom="" hours="" per="" week="" for="" full-time="" faculty="" is="" greater="" than="" 11.0.="" o="" c.="" at="" the="" 1%="" level="" of="" significance,="" there="" is="" not="" sufficient="" evidence="" to="" reject="" the="" claim="" that="" the="" mean="" number="" of="" o="" d.="" at="" the="" 1%="" level="" of="" significance,="" there="" is="" sufficient="" evidence="" to="" reject="" the="" claim="" that="" the="" mean="" number="" of="" classroom="" hours="" per="" week="" for="" full-time="" faculty="" is="" 11.0.="" classroom="" hours="" per="" week="" for="" full-time="" faculty="" is="">