random sample of the closing stock prices in dollars for a company in a recent year is
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Question:
random sample of the closing stock prices in dollars for a company in a recent year is listed below. Assume that
is $2.33.
Construct the90% and 99%confidence intervals for the population mean. Interpret the results and compare the widths of
the confidence intervals.
18.06 | 16.56 | 18.21 | 22.96 | 19.88 | 16.05 | 16.77 | 19.41 | |
21.92 | 21.84 | 21.98 | 15.81 | 21.26 | 19.26 | 21.02 | 19.73 |
Part 1
The 90% confidence interval is .
Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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