A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that is $2.05. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 20.05 17.97 17.49 16.95 The 90% confidence interval is ($1.645 $2.576 (Round to two decimal places as needed.) 21.71 16.51 22.72 20.45 17.81 15.54 16.34 15.41 18.73 19.13 15.67 16.84

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