A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that o is $2.33. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 16.14 17.75 20.31 18.74 15.16 20.92 17.88 15.25 21.46 16.48 15.11 21.75 20.25 18.37 19.71 18.67 The 90% confidence interval is ($$) (Round to two decimal places as needed.)
A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that o is $2.33. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 16.14 17.75 20.31 18.74 15.16 20.92 17.88 15.25 21.46 16.48 15.11 21.75 20.25 18.37 19.71 18.67 The 90% confidence interval is ($$) (Round to two decimal places as needed.)
A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Transcribed Image Text:A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that o is
$2.33. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the
widths of the confidence intervals.
16.14
17.75
20.31
18.74
15.16
20.92
17.88
15.25
21.46
16.48
15.11
21.75
20.25
18.37
19.71
18.67
The 90% confidence interval is ($ $)
(Round to two decimal places as needed.)

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