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Consider a population with a known standard deviation of 28.2. In order to compute an interval estimate (or the population mean, a sample of 66 observations is drawn. a. Is the condition that X is normally distributed? Yes No b. Compute the margin of error at a 95% confidence level. c. Compute the margin of error at a 95% confidence level based on a larger sample of 265 observations. d. which of the two margins of error will lead to a winder condition interval? 95% confidence with n = 66. 95% confidence with n = 265.
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