This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
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....
View
Full
Document
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.
 Spring '07
 smills

Click to edit the document details