# Question: a Use an appropriate computer program to obtain the sample

(a) Use an appropriate computer program to obtain the sample correlation coefficient for the data of Exercise 14.63.

(b) Test whether r is significantly different from 0 using the 0.05 level.

(b) Test whether r is significantly different from 0 using the 0.05 level.

## Answer to relevant Questions

(a) Use an appropriate computer program to obtain the sample correlation coefficient for the data of Exercise 14.64. (b) Test whether this coefficient is significant using the 0.10 level. The regression models that we introduced in Sections 14.2 and 14.6 are linear in the x’s, but, more important, they are also linear in the β’s. Indeed, they can be used in some problems where the relationship between ...Prove the statement made on page 436; that The following are the numbers of words per minute that a secretary typed on several occasions on four different typewriters: Use the computing formulas of Exercise 15.4 to calculate the sums of squares required to test at ...The experiment described in Exercise 15.23 was repeated, with the following results. Combining these data with those of Exercise 15.23, perform an appropriate analysis of variance to test the null hypotheses involving fuels, ...Post your question