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Auto Loan Interest Rates Case A loan officer compares the interest rates for 48-month fixed-rate auto loans and 48-month variable-rate auto loans. Two independent,

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Auto Loan Interest Rates Case 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. The following is the Excel output of the statistical test performed at a significance level of 5%: Fixed-Rate (%) Variable-Rate (%) Mean Variance Observations Pooled Variance df 4.0838 0.3376 8 0.2744 Hypothesized Mean Difference 0 11 t Stat 3.7431 P(T

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