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# ec-52 - 1 It is E370 Time Announcements W armUps Questions...

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1 April 22, 2009 It is E370 Time!!! Announcements WarmUps Questions Today’s Goals: You should be able to T calculate SSE. T calculate SST. T calculate SSR. T calculate R 2 . T interpret R 2 . T interpret Excel regression output. Next Time~~Dummy Variables Announcements T Hypothesis Tests from Class: The answers to the hypothesis test problems worked on in class can be found under Class Announcements. T In response to student queries, the information about the lab exam has been augmented. For example: h corresponding information in the course workbook has been noted. h the exclusion of any Least Squares material has been emphasized. h discussion of one- versus two-tailed tests. Airfare' = 110.34 + 0.16*(Miles) T What is the meaning of “110.34"? T What is the meaning of “0.16"? T What is the predicted airfare for a destination 300 miles from Baltimore? Does Airfare' = 110.34 + 0.16*(Miles) do a better job of predicting airfares from Baltimore than Mean Airfare = \$221.67 ?

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ec-52 - 1 It is E370 Time Announcements W armUps Questions...

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