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: 2.60 % 3.03 % 2.875 % 3.28 % 3.20 % while a sample of five 48-month fixed-rate auto loans had loan rates as follows: [ 4.032 % 3.85 % 4.384 % 3.65 % 4.07 %