(a) Use an appropriate computer program to obtain the sample correlation coefficient for the data of Exercise 64.
(b) Test whether this coefficient is significant using the 0.10 level.
Exercise 64
The following are loads (grams) put on the centers of like plastic rods with the resulting deflections (cm).
(a) Use an appropriate computer program to fit a straight line to these data.
(b) Using the 0.95 level of significance, test the null hypothesis that β = 0.01 against the alternative that β > 0.01.