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Question 2 In a previous study conducted several years ago, a man owned on average 15 dress shirts. The standard deviation of the population is 2. A researcher wishes to see if that average has changed. He selected a random sample of 46 men and found that the average number of dress shirts that they owned was 14.7. At a = 0.01, is there enough evidence to support the claim that the average has changed? V. Write hypotheses for the given scenario. vi. Find the test statistic vii. Find the critical values viii. State the conclusion. (State the conclusion relating it to the given practical case)