Many People Believe That The Average Number Of Facebook Friends Is 125 The Population Standard Deviation Is 37 7 A Ran 1 (135.1 KiB) Viewed 29 times
Many People Believe That The Average Number Of Facebook Friends Is 125 The Population Standard Deviation Is 37 7 A Ran 2 (115.37 KiB) Viewed 29 times
Many people believe that the average number of Facebook friends is 125. The population standard deviation is 37.7. A random sample of 33 high school students in a particular county revealed that the average number of Facebook friends was 153. At a=0.10, is there sufficient evidence to conclude that the mean number of friends is greater than 125? a) State the hypotheses and identify the claim with the correct hypothesis. 01. Ho:ps153 Not claim H1:p>153 claim 2. Ho:P2125 claim Hip<125 Not claim 3. Ho:us125 Not claim H:p>125 claim
b) Find the critical value (s). 01. CV=1.28 2. CV=1.33 O3. CV=1.96 c) Compute the test value: O 1. z=4.35 2. z=4.22 O 3. z= 4.27 d) Make the decision. 01. Reject the null hypothesis. 2.Do not reject the null hypothesis. e) Summarize the results. 01. There is enough evidence to support the claim. O2.There is not enough evidence to support the claim.
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