Sample_FinalExam_Key

Sample_FinalExam_Key - β 1 is significant 3 a μ 1 mean...

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MGMT 305 Spring 2007 Key to Sample Final Exam Multiple Choices: C C D A C D D C B B C B C D D B C B Problems: 1. a. 22 . 41 ) 6 77 )( 069 . 1 ( 6 165 069 . 1 6 / 77 1171 6 / ) 165 )( 77 ( 1922 0 2 1 = + = - = - - = b b Average Rental Rate = 41.22-1.069*Vacancy Rate b. (1) Using F-test, F = 8.32
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Since 8.32 > F 0.05,1,4 = 7.71, reject H 0 . => There is a significant linear relationship between x and y. Or (2) Using t-test: t = -2.8851 Since –2.8851 < -2.776, reject H 0 . => There is a significant linear relationship between x and y. c. y ˆ = 41.22-1.069(20) = 19.84 2. a. Y = 7.0174 + 8.6233X 1 + 0.0858X 2 b. F = 17.73 > 9.55; there is a significant relationship c. t = 3.59 > 2.365;
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Unformatted text preview: β 1 is significant. 3. a. μ 1 : mean score of the northern university μ 2 : mean score of the central university μ 3 : mean score of the southern university H : μ 1 =μ 2 = μ 3 H a : Not all the population means are equal. b. Sources Sum of of Variation Squares df Mean Square F Treatments 90 2 45 5.401 Error 100 12 8.33 Total 190 14 c. F = 5.401 > 3.89; Reject H At 5% level of significance, there is a significant difference in the average scores of the students from the three universities....
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Sample_FinalExam_Key - β 1 is significant 3 a μ 1 mean...

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