Suppose the correlation coefficient between FEV for 100 sets of identical twins is .7, whereas the comparable correlation for 120 sets of fraternal twins is .38. 11.9 What test procedure can be used...

Suppose the correlation coefficient between FEV for 100 sets of identical twins is .7, whereas the comparable correlation for 120 sets of fraternal twins is .38.
11.9 What test procedure can be used to compare the two correlation coefficients?
11.10 Perform the procedure in Problem 11.9 using the critical-value method.
11.11 What is the p-value of the test?
Suppose the correlation coefficient between weight is .78 for the 100 sets of identical twins and .50 for the 120 sets of fraternal twins.
11.12 Test for whether the true correlation coefficients differ between these groups. Report a p-value.