ass5 - STAT3503 Assignment # 5 Due Aug 13 IN Tutorial....

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Unformatted text preview: STAT3503 Assignment # 5 Due Aug 13 IN Tutorial. Question 1. ( Use SAS to solve this question ) The board of directors of a professional association conducted a random sample survey of 30 members to assess the effects of several possible amounts of dues increase. The sample results follow. X denotes the dollar increase in annual dues posited in the survey interview, and Y=1 if the interviewee indicated that the membership will not be renewed at that amount of dues increase and 0 if the membership will be renewed. Logistic regression model E Y i = π i = exp( β + β 1 X i ) 1 + exp( β + β 1 X i ) is assumed to be appropriate. (data in WebCT \ SAS code). (a) [2 points] Find the maximum likelihood estimates of β and β 1 . State the fitted response function. (b) [2 points] Obtain exp( b β 1 ) and interpret this number. (c) [2 points] What is the estimated probability that association members will not renew their mem- bership if the dues are increased by \$40. (d) [2 points] Estimate the amount of dues increase for which 75 percent of the members are expected not to renew their association membership....
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This note was uploaded on 09/30/2010 for the course STAT 3503 taught by Professor Smills during the Spring '07 term at Carleton CA.

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ass5 - STAT3503 Assignment # 5 Due Aug 13 IN Tutorial....

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