Question: Exercise 1 r= 0.81 N= 100 Question 1: Testing H 0 :r=0 vs. H A :r0 at 1% significance level (two-sided test) Note t N-2,0.95

Exercise 1

r= 0.81

N= 100

Question 1:

Testing H0:r=0 vs.HA:r0 at 1% significance level (two-sided test)

Note tN-2,0.95=1.66; t N-2,0.975=1.98; t N-2,0.995=2.63

Question 2:

Testing H0:r=0.8 vs.HA:r0.8 (using table) at 5% significance level (two-sided test) Note Z0.95=1.64; Z0.975=1.96; and Z0.995=2.58

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