19) A new-car dealer is leasing various brand-new randomly selected models for the monthly rates (in dollars) listed below. Estimate the true population variance (and standard deviation) in leasing...

Extracted text: 19) A new-car dealer is leasing various brand-new randomly selected models for the monthly rates (in dollars) listed below. Estimate the true population variance (and standard deviation) in leasing rates with 90% confidence. Assume the variable is normally distributed. 165 173 200 241 241 245 A) 719.44 <><6955.64 b)="" 599.53=""><5796.37 26.82=""><83.40 24.49=""><76.13 c)="" 19.75=""><>< 190.92="" 4.44=""><13.82 d)="" 16.46="">