Did Clayton State Students gal quarantine? You wonder if the shelter-in-place orders in the Spring of 2020 led to people gaining weight. You take a random sample of 45 Clayton State students, and find an average weight of 176.9 pounds, with a standard deviation of 14.8 pounds. Suppose the average weight of Clayton State students in February 2020 was known to be 172.7 pounds. a) Should you use a z-test or a t-test? A/ b) Why did you choose that test?

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A: b) c)