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Author Question: Exhibit 12-9A regression and correlation analysis resulted in the following information regarding a ... (Read 36 times)

poopoo

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on: Mar 25, 2023

Question 1

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 sample correlation coefficient equals


◦

0.8045


◦

-0.8045


◦

0


◦

1



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 coefficient of determination equals


◦

0.6472


◦

-0.6472


◦

0


◦

1

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by poopoo on Mar 25, 2023

kaynelson17

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Reply #1 on: Mar 25, 2023
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poopoo

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Reply 2 on: Mar 25, 2023
Wow, this really help

carlsona147

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Reply 3 on: Yesterday
Gracias!

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