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 five 48-month variable-rate auto loans had the following loan rates: [ 2.6 % 3.07 % 2.872 % 3.24 % 3.15 % ] while a sample of five 48-month fixed-rate auto loans had loan rates as follows: [ 4.032 % 3.85 % 4.385 % 3.75 % 4.16