MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Unsure about the answer , and could you please explain me the procedure? I am a little bit confused.

A researcher has estimated a linear model to study the effect of weekly household
income x (in $100) on weekly household expenditure on food y, (in $). Using a
i
i
sample of size N = 40, she found that
y = 83.42 + 10.21x₁, R²=0.384
(43.41) (2.09)
N
and Σ(y₁ - y)² = 500,000 and the sample mean of x, is 19.605. Then,
i=1
i
O a. ₁ (-y)² = 58,000
i=1
i
N
Ο Φ. Σ. 6-5) 2=96,000
i=1 i
C.
Σ(-y)² = 192,000
i=1
O d. (-y)² = 384,000
i=1
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Transcribed Image Text:A researcher has estimated a linear model to study the effect of weekly household income x (in $100) on weekly household expenditure on food y, (in $). Using a i i sample of size N = 40, she found that y = 83.42 + 10.21x₁, R²=0.384 (43.41) (2.09) N and Σ(y₁ - y)² = 500,000 and the sample mean of x, is 19.605. Then, i=1 i O a. ₁ (-y)² = 58,000 i=1 i N Ο Φ. Σ. 6-5) 2=96,000 i=1 i C. Σ(-y)² = 192,000 i=1 O d. (-y)² = 384,000 i=1
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