A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that is $2.38. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 18.37 16.85 19.49 21.42 18.78 21.52 The 90% confidence interval is ($.$. (Round to two decimal places as needed.) 17.42 15.51 21.35 15.32 18.09 17.36 15.42 20.46 15.98 20.53
A random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that is $2.38. Construct the 90% and 99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. 18.37 16.85 19.49 21.42 18.78 21.52 The 90% confidence interval is ($.$. (Round to two decimal places as needed.) 17.42 15.51 21.35 15.32 18.09 17.36 15.42 20.46 15.98 20.53
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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 $2.38. Construct the 90% and
99% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.
18.37
16.85
19.49
21.42
18.78
21.52
The 90% confidence interval is ($.$).
(Round to two decimal places as needed.)
17.42
15.51
21.35
15.32
18.09
17.36
15.42
20.46
15.98
20.53
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