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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 99​% confidence interval estimate of the population standard deviation.  60 63 63 55 63 54 61 60 61 69 58 66

The confidence interval estimate is  ___ ​mi/h <σ< ___ ​mi/h.

 Mar 25, 2023
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The 99​% confidence interval estimate is 2.7 ​mi/h<σ<8.7 ​mi/h.

 Mar 25, 2023

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