Question

Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 PM. on a weekday. Use the sample data to construct a 90% confidence interval estimate of the population standard deviation.\ 64 65 65 56 65 53 60 59 60 70 58 69\ Click the icon to view the table of Chi-Square critical values.\ The confidence interval estimate is $oxed{}$ mi/h $< \alpha <$ $oxed{}$ mi/h (Round to one decimal place as needed)

          Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 PM. on a weekday. Use the sample data to construct a 90% confidence interval estimate of the population standard deviation.\
64 65 65 56 65 53 60 59 60 70 58 69\
Click the icon to view the table of Chi-Square critical values.\
The confidence interval estimate is $oxed{}$ mi/h $< \alpha <$ $oxed{}$ mi/h (Round to one decimal place as needed)

$Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 PM. on a weekday. Use the sample data to construct a 90% confidence interval estimate of the population standard deviation.\ 64 65 65 56 65 53 60 59 60 70 58 69Click the icon to view the table of Chi-Square critical values.The confidence interval estimate is oxed mi/h < α < oxed mi/h (Round to one decimal place as needed)$

Added by Daniel S.

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