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Many people believe that the average number of Facebook friends is 120. The population standard...

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Many people believe that the average number of Facebook friends is 120. The population standard deviation is 38.3. A random sample of 31 high school students in a particular county revealed that the average number of Facebook friends was 146. At a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 120?Part 1 of 5State the hypotheses and identify the claim with the correct hypothesis.Ho: ? 120 not claimH?: ?> 120 claimThis hypotheses test is a one-tailedFind the critical value(s). Round the answer to two decimal places. If there is morethan one critical value, separate them with commas.Critical value(s):Compute the test value. Always round z score values to two decimal places.

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