Question: Repeat the problem in Example 1 with a sample of size n = 25. Approach Use the approach presented in Example 1, but let n

Repeat the problem in Example 1 with a sample of size n = 25.

Approach Use the approach presented in Example 1, but let n = 25 instead of n = 9.

Data from Example 1

An intelligence quotient, or IQ, is a measurement of intelligence derived from a standardized test, such as the Stanford Binet IQ test. Scores on this test are approximately normally distributed with a mean score of 100 and a standard deviation of 15. What is the sampling distribution of the sample mean for a sample of size n = 9?

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