Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P
Posted: Sun Jul 10, 2022 10:40 am
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. 64 65 65 56 65 55 59 58 59 68 60 66 Click the icon to view the table of Chi-Square critical values. The confidence interval estimate is mi/h <o< mi/h. (Round to one decimal place as needed.)