OpenStax, Statistics §7.1 The Central Limit Theorem for Sample Means (Averages) · Try It 2 · Statistics · Sampling distributions
The Central Limit Theorem for Sample Means (Averages) · Try It 2
The length of time taken on the SAT exam for a group of students is normally distributed with a mean of 2.5 hours and a standard deviation of 0.25 hours. A sample size of n = 60 is drawn randomly from the population. Find the probability that the sample mean is between two hours and three hours.
OpenStax, Statistics · §7.1 The Central Limit Theorem for Sample Means (Averages) · Try It 2
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