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STAT 501 HW 5 answer key

# STAT 501 HW 5 answer key - Stat 501 Homework 5 Answers Fall...

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Unformatted text preview: Stat 501 Homework 5 Answers Fall ‘07 1. A. The β matrix is a single column that lists the four beta parameters β , β 1 , β 2 , β 3 . β β β β = β 3 2 1 B. The X matrix will have four columns and seven rows. All values in the first column will equal 1, the second column will give the data for X 1 , the third column will give the data for X 2 , and the fourth column will give values of 2 2 X . For instance, the first row of the fourth column will have the value 1 2 = 1, the second row will have the value 2 2 = 4, and so on. = 4 2 5 1 1 1 5 1 4 2 4 1 1 1 4 1 1 1 3 1 4 2 2 1 1 1 2 1 X 2. There are five columns and 200 rows in the X matrix. • All values in the first column are 1. • The second column gives body weights for the 200 people. • The third column gives values for an indicator variable (say, =1 for male and 0 for female, or the reverse)....
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STAT 501 HW 5 answer key - Stat 501 Homework 5 Answers Fall...

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