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 95% confidence interval...

Extracted 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 a 95% confidence interval estimate of the population standard deviation. 61 64 64 57 64 53 60 59 60 70 59 68 = Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is mi/h <>< mi/h.="" (round="" to="" one="" decimal="" place="" as="">