For Exercises 11.59 to 11.61, see page 568; for 11.62 and 11.63, see page 571; for 11.64 to 11.66, see pages 474–575; for 11.67 and 11.68, see page 577; for 11.69 to 11.72, see page 580.
11.65 Compare the means.
CASE 11.3 Regression on a single indicator variable compares the mean responses in two groups. It is, in fact, equivalent to the pooled test for comparing two means (Chapter 7, page 389). Use the pooled test to compare the mean price of the homes that have three or more bedrooms with the mean price of those that do not. Verify that the test statistic, degrees of freedom, and -value agree with the test for the coefficient of Bed3 in Example 11.21.
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homes04