Among various ethnic groups, the standard deviation of heights is known to be approximately three inches. We wish to construct a 95% confidence interval for the mean height of male Swedes. Forty- eight male Swedes are surveyed. The sample mean is 74 inches. Round answers to 3 decimal places. a. Find the following: i. Z= ii. o iii. n b. Construct a 95% confidence interval for the population mean height of male Swedes. i. State the confidence interval. CI: ii. Calculate the error bound. EBM:

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