questions 6-8

Average Parent Height Predict Son Height Average Parent Height Predict Daughter Height 75 R' - 0.3437 R - 0.3428 73 First Daughter's Height First Son's Height 55 60 65 75 80 70 75 80 Average Parents' Height Average Parents' Height 6) What is the linear regression equation for predicting a son's height and for predicting a daughter's height? Hypothesis Testing & Correlation Alpha (a) Critical values for n=143 0.05 0.196 0.01 0.256 7) According to the Test Statistic (correlation value) and the Critical r value(s) above, should you reject or fail to reject the null hypothesis at o - 0.05 level? Does this mean that the correlation is significant or not significant? Does this mean the linear regression (question 6) is a good fit or a bad fit 8) Estimate the height of a son and daughter born to a father and mother who are 51 and 518" respectively