Question 7.97

97. Measuring Well-Being. Refer to Exercise 93.

  1. What are the two symmetric values of that contain the middle 99% of sample means?
  2. Draw a graph of the sampling distribution of , showing , along with the two symmetric values of from part (a). Shade the area under the curve between these two values of , and indicate the amount of area this represents.

7.1.97

(a) 61.05 and 71.35

(b)

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