questions 6-8

Average Parent Height Predict Son Height Average Parent Height Predict Daughter Height 75 R' = 0.3428 R' - 0.3437 73 71 G H First Daughter's Height First Son's Height For the Regressi Predicting Son's Height 55 70 80 Slope 0.8122 55 60 65 70 75 55 60 65 75 Average Parents' Height Average Parents' Height Intercept 16.4402 Correlation 0.5863 6) What is the linear regression equation for predicting a son's height and for predicting a daughter's height? Predicting Daughter's Height Slope 0.7374 Intercept 15.9001 Correlation 0.5855 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 a = 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 6'4" and 5'8" respectively