Question

5.) To test the hypotheses that there is no significant correlation vs there is significant correlation between two variables X and Y (two sided test) a sample of size 15 is taken with alpha=10%. Find the critical value for this test.

6.) Researchers wanted to calculate the correlation between weight (X) and blood pressure (Y). Data from 8 individuals were collected and following information were calculated. ∑X=317 ∑ X = 317 , ∑Y=1943 ∑ Y = 1943 , ∑X.Y=101276 ∑ X . Y = 101276 , ∑X2=17027 ∑ X 2 = 17027 , ∑Y2=637733 ∑ Y 2 = 637733. Find Pearson correlation coefficient.

Answer 1