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. Use the sample data to construct an 80% confidence interval estimate of the population standard deviation. 63 60 60 55 60 53 59 58 59 69 58 66 D P Click the icon to view the table of Chi-Square critical values. The confidence interval estimate isO mi/h

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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. Use the sample data to construct an 80% confidence interval estimate of the population standard deviation.
63
60
60
55
60
53
59
58
59
69
58
66 D
E Click the icon to view the table of Chi-Square critical values.
The confidence interval estimate isO mi/h <o< mi/h.
(Round to one decimal place as needed.)
Transcribed Image Text: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. Use the sample data to construct an 80% confidence interval estimate of the population standard deviation. 63 60 60 55 60 53 59 58 59 69 58 66 D E Click the icon to view the table of Chi-Square critical values. The confidence interval estimate isO mi/h <o< mi/h. (Round to one decimal place as needed.)
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