Question Help Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Us the sample data to construct a 99% confidence interval estimate of the population standard deviation. 62 64 64 55 64 55 60 59 60 68 59 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is 2.6 mi/h

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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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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Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Us
the sample data to construct a 99% confidence interval estimate of the population standard deviation.
62
64
64
55
64
55
60
59
60
68
59
Click the icon to view the table of Chi-Square critical values.
The confidence interval estimate is 2.6 mi/h <o< 8.4 mi/h.
(Round to one decimal place as needed.)
Does the confidence interval describe the standard deviation for all times during the week? Choose the correct answer below.
O A. Yes. The confidence interval describes the standard deviation for all times during the week.
O B. No. The confidence interval is an estimate of the standard deviation of the population of speeds at 3:30 on a weekday, not other times.
Transcribed Image Text:Question Help Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Us the sample data to construct a 99% confidence interval estimate of the population standard deviation. 62 64 64 55 64 55 60 59 60 68 59 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is 2.6 mi/h <o< 8.4 mi/h. (Round to one decimal place as needed.) Does the confidence interval describe the standard deviation for all times during the week? Choose the correct answer below. O A. Yes. The confidence interval describes the standard deviation for all times during the week. O B. No. The confidence interval is an estimate of the standard deviation of the population of speeds at 3:30 on a weekday, not other times.
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