For a random sample of 66 state precincts, data are available on y = percentage of adult residents who are registered to vote, x1 =percentage of adult residents owning homes, x2 = percentage of adult residents who are nonwhite, x3 = median family income (thousands of dollars), x4 =median age of residents, x5 =percentage of residents who have lived in the precinct for at least 10 years.

Table 11.18 shows some output used to analyze the data.

(a) Fill in all the missing values.

(b) Do you think it is necessary to include all five explanatory variables in the model? Explain.

(c) To what test does “F value” refer? Interpret the result of that test.

(d) To what test does the t-value opposite x1 refer? Interpret the result of that test.