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For Exercises 71–76, X=stats quiz scores has a mean μ=80 and standard deviation σ=6. We take random samples of size n=36.

Question 7.75

75. In your graph, shade the middle 99% of the area under the curve. What are the two symmetric values for the sample mean that contain the middle 99% of sample means?

7.1.75

image

77.42 and 82.58

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