12.22 Refer to Exercise 12.8. The data, along with the Excel analysis of variance table, are reproduced below:

a. Do the data provide sufficient evidence to indicate that y and x are linearly related? Use the information in the printout to answer this question at the 5% level of significance.

b. Calculate the coefficient of determination r. What information does this value give about the usefulness of the linear model?a. Do the data provide sufficient evidence to indicate that y and x are linearly related? Use the information in the printout to answer this question at the 5% level of significance.

b. Calculate the coefficient of determination r. What information does this value give about the usefulness of the linear model?

Transcribed Image Text:

X 1 2 3 45 6 y 9.7 6.5 6.4 4.1 2.1 1.0