Question 14 0.5 pts A study was performed on 64 female college athletes. Below is the regression output with body weight in pounds, height in inches, and age in years as the explanatory variables. Percent body fat is the response variable. Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 24.3337 10.8639 2. 240 0. 0288 body weight 0. 1767 0 . 0405 4. 365 5. 1e-05 height -0. 5172 0. 1961 -2 . 638 0. 0106 age 0. 2254 0. 2357 0. 956 0. 3428 Residual standard error: 3.638 on 60 degrees of freedom Multiple R-squared: 0.2489, Adjusted R-squared: 0.2113 F-statistic: 6.627 on 3 and 60 DF, p-value: 0. 0006101 Suppose a t-test was performed on the explanatory variable body weight. What is the degrees of freedom for the t- statistic