Q:Question:A loan officer compares the interest rates for 48-month fixed-rate auto loans and 48-month variable-rate auto loans. Two independent, random samples of auto loan rates are selected. A sample of eight 48-month fixed?rate auto loans had the following loan rates (all written as percentages): 8.75 7.63 7.26 9.43 7.86 7.20 8.09 8.60 while a sample of five 48?month variable?rate auto loans had loan rates as follows: 7.60 7.00 6.79 7.36 6.99 (a)A:Answer:Soln Let us call For Fixed-rate auto Loans Group a...