HELP ME PLEASE

Questions 13-15 are based on the following information: The Pearson r between two different tests measuring college aptitude has been found to be .80 for a group of 100 college freshmen. The mean and standard deviation for each test are given below: Test Mean SD G 28 5 H 40 6 What is the value of b in the regression equation A = bG + c ? O .560 O .667 O .800 O .833 O.960 In the derivation of the formula for b, application of the principal of least squares entailed the minimizing of the sum of the squares of the differences between O H-scores and G-scores. O H-scores and H standard scores for the two variables. O H-scores and predicted H-scores. What is the correlation between the observed H-scores and the predicted H- scores (i.e. HH ). O .67 O .70 O .83 O THE cannot be found from the data given. O T HA can be obtained, but the correct answer is not given