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Homework 3

# Homework 3 - STAT 502 Assignment#3 Coverage KKMN Chapter...

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STAT 502 – Assignment #3 Coverage: KKMN Chapter 8-9 Name: ____________________________ SCORE: ____ of 40 Homework Problems—These should be done individually! Please note that HW problems generally do not require any SAS coding. #1. (6 points) KKMN Problem 8.03 as stated. Please note that SSY and SST are the same thing; you should not use SAS for this problem. #2. (4 points) KKMN Problem 8.04 as stated. #3. (7 points) For 36 observations, a response Y, and three variables X 1 , X 2 , and X 3 were measured. The SST = 4410 and SSE = 465. Answer the following questions. a. Determine the ANOVA table for the regression of Y on X 1 , X 2 , and X 3 . b. Determine the R 2 for the model in part a. Based on that value, comment on whether the three predictors appear to be related to the response variable. c. Conduct the F-test from the ANOVA table, making sure to accurately state your hypotheses and draw an appropriate conclusion in the context of the problem. #4. (8 points) Residential real estate prices depend, in part, on property size and number of bedrooms. The house size X1 (in hundreds of square feet), number of bedrooms X2, and house price Y (in thousands of dollars) of a random sample of houses in West Lafayette were observed. Here is the

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Homework 3 - STAT 502 Assignment#3 Coverage KKMN Chapter...

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