X=2 4. A company wants to determine the mean amount of time their employees surf the web compared to the national averag

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X 2 4 A Company Wants To Determine The Mean Amount Of Time Their Employees Surf The Web Compared To The National Averag 1 (36.95 KiB) Viewed 35 times

X=2 4. A company wants to determine the mean amount of time their employees surf the web compared to the national average of 2 hours a day. Taking a random sample of 41 employees they find a sample mean of 2 hours and 15 minutes with a sample standard deviation of 10 minutes for employee time surting the web. Using a significance level of 5% perform an appropriate hypothesis test and state your conclusion S=10 N=41 mean-2 nr 15min. (s) (2 points is the study of appropriate sise? Significance 0.05. hp-41210 Sampt size is = 10 yes! (b) (2 points) State the null and alternative hypotheses Hom=2 Ho:2.25 = 2 Haim > 2 Ha: 2.25 12 Hain 72 Ha :2.2572 (c) (3 points) Calculate the test statistic. 225-2= 0.25 10 = 511 = 1.561737619 0.160078103936 41 T~0.2 2.25-2 (d) (3 points) Find the P-value. df=41-1-40 T~0.2 P 70.421 8=0.05 (e) (2 points) State your conclusion in context to the problem, reject null nupothesis because Ho 2.25 is NOT caual to 2. accept alternative hypothesis Haiz. Z572.02.25 is greater than 2