Changing the sample size. Consider the setting of the
Chapter , Problem 6.13(choose chapter or problem)
Changing the sample size. Consider the setting of the previous exercise. Suppose that the sample mean is again 73 and the population standard deviation is 28. Make a diagram similar to Figure 6.5 (page 361) that illustrates the effect of sample size on the width of a 95% interval. Use the following sample sizes: 10, 20, 40, and 80. Summarize what the diagram shows.
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