The results of a multiple regression based on nine observations are shown in Table 15.11. Based on these results answer the following questions:
a. What percentage of variance is explained by the regression?
b. Is the regression significant at the 90% confidence level?
c. Which variable has the highest coefficient?
d. Which variable is most significant?
e. Which parameters are not significant at 90%?
f. What is the problem with this regression?
g. What would you try next?