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17. Use the given degree of confidence and sample data to find a confidence interval for the...
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Mathematics, 12.03.2020 18:52 swelch2010
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17. Use the given degree of confidence and sample data to find a confidence interval for the
population standard deviation o. Assume that the population has a normal distribution.
Round the confidence interval limits to the same number of decimal places as the sample
standard deviation.
ibing
A sociologist develops a test to measure attitudes about public transportation, and 27 randomly
selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4.
Construct the 95% confidence interval for the standard deviation, o, of the scores of all subjects.
17.5 <0 < 27.8
17.2
16.6
16.9
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