Author Question: Exhibit 12-9A regression and correlation analysis resulted in the following information regarding a ... (Read 26 times)

jany123 · **on:** Mar 25, 2023

Question 1

Exhibit 12-8
The following information regarding a dependent variable Y and an independent variable X is provided

n = 4

ΣX = 90

ΣY = 340

Σ (Y -)(X - ) = -156

Σ (X - )²= 234

Σ (Y - )²= 1974

SSR = 104

Refer to Exhibit 12-8. The coefficient of correlation is

◦

-0.2295

◦

0.2295

◦

0.0527

◦

-0.0572

Question 2

Exhibit 12-9
A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x).

n = 10

ΣX = 90

ΣY = 170

Σ (Y -)(X - ) = = 466

Σ (Y - )²= = 1434

Σ (X - )²= 234

SSE = 505.98

Refer to Exhibit 12-9. The least squares estimate of b₁ equals

◦

0.923

◦

1.991

◦

-1.991

◦

-0.923

risolinick@gmail.com · **Reply #1 on:** Mar 25, 2023

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