To test whether extracurricular activity is a good predictor of college success, a college administrator records...
To test whether extracurricular activity is a good predictor of college success, a college administrator records whether students participated in extracurricular activities during high school and their subsequent college freshman GPA. Extracurricular Activity College Freshman GPA Yes 3.47 Yes 3.34 Yes 3.93 Yes 3.67 No 2.92 No 3.88 No 3.47 No 2.71 No 3.83 No 2.79 (a) Code the dichotomous variable and then compute a point-biserial correlation coefficient. (Round your answer to three decimal places.) (b) Using a two-tailed test...
To test whether extracurricular activity is a good predictor of college success, a college administrator records whether students participated in extracurricular activities during high school and their subsequent college freshman GPA College Freshman GPA 3.55 Yes Yes Yes 3.36 3.93 Yes 3.65 NO NO 3.85 NO 3.45 No 2.75 No NO 2.80 (a) Code the dichotomous variable and then compute a point biserial correlation coefficient. (Round your answer to three decimal places.) (b) Using a two-tailed test at a 0.05...
Extracurricular Activit Yes Yes Yes Yes No No No No No No College Freshman GPA 3.56 3.34 3.95 3.72 2.93 3.80 3.40 2.78 3.84 2.78 (a) Code the dichotomous variable and then compute a point-biserial correlation coefficient. (Round your answer to three (b) Using a two-tailed test at a 0.05 level of significance, state the decision to retain or reject the null hypothesis. Hint: Yo O Retain the null hypothesis. O Reject the null hypothesis You may need to use...