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 a 98​% confidence interval estimate of the population standard deviation.   61 62 62 57 62 55 59 58 59 68 60 66     LOADING... Click the icon to view the table of​ Chi-Square critical values. The confidence interval estimate is_____ ​mi/hless than

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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
a
98​%
confidence interval estimate of the population standard deviation.
 
61
62
62
57
62
55
59
58
59
68
60
66
 
 
LOADING...
Click the icon to view the table of​ Chi-Square critical values.
The confidence interval estimate is_____
​mi/hless than<sigmaσless than_____
​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.
 
 
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