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Practice Test 11
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Q1
A store’s individual purchase amounts are right-skewed because many customers buy low-cost items and a few spend a lot; the population is not normal. The manager repeatedly selects random samples of $n=35$ purchases and computes the sample mean purchase amount $\bar{x}$. The sampling distribution of $\bar{x}$ is approximately normal. Why is the sampling distribution approximately normal?
A store’s individual purchase amounts are right-skewed because many customers buy low-cost items and a few spend a lot; the population is not normal. The manager repeatedly selects random samples of $n=35$ purchases and computes the sample mean purchase amount $\bar{x}$. The sampling distribution of $\bar{x}$ is approximately normal. Why is the sampling distribution approximately normal?