The exercise involving data in this and subsequent sections were designed to be solved using Excel. In a regression analysis involving 30 observations, the following estimated regression equation was obtained. Enter negative values as negative numbers. ŷ = 17.6 + 3.8z1 – 2.3zz + 7.6x3 +2.74 a. Interpret b1, b2, b3, and b4 in this estimated regression equation. Assume that for each coefficient statement, the remaining three variables are held constant (to 1 decimal). 3.8 estimated change in y per 1 unit change in #1 b2 = -2.3 estimated change in y per 1 unit change in æ2 b3 7.6 estimated change in y per 1 unit change in #3 b4 = 2.7 estimated change in y per 1 unit change in #4 b. Estimate y when ¤1 = 10, x2 = 5, æz = 1, and #4 = 2. (to 1 decimal)

Q: What is the correct answer ? I have to show work.

A: Given Information: Sample size (n) = 22  Mean (u) = 12 Standard deviation (s) = 5.4

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A:

Q: What is the right answer? I have to show work.

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A:

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A: Given:

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A: You need to know this before solving the question.

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A: First factor the equation

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Q: How do you get those answers?

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