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OpenStax, Statistics §7.1 The Central Limit Theorem for Sample Means (Averages) · Exercise 14 · Statistics · Sampling distributions

The Central Limit Theorem for Sample Means (Averages) · Exercise 14

The percentage of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of about ten. Suppose that 16 individuals are randomly chosen. Let = average percentage of fat calories.

(a) ~ ______(______, ______)
(b) For the group of 16, find the probability that the average percentage of fat calories consumed is more than five. Graph the situation and shade in the area to be determined.
(c) Find the first quartile for the average percentage of fat calories.

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OpenStax, Statistics · §7.1 The Central Limit Theorem for Sample Means (Averages) · Exercise 14

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