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Many people believe that the average number of Facebook friends is 135. The population standard deviation...

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Statistics

Many people believe that the average number of Facebook friendsis 135. The population standard deviation is 37.7. A random sampleof 38 high school students in a particular county revealed that theaverage number of Facebook friends was 151. At α=0.05, is theresufficient evidence to conclude that the mean number of friends isgreater than 135?

(a)State the hypotheses and identify the claim.

(b)Find the critical value.

(c)Compute the test value.

(d)Make the decision.

(e)Summarize the results.

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