Exhibit 12-9A regression and correlation analysis resulted in the ...

[poopoo]

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

[kaynelson17]

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[poopoo]

Thanks for the timely response, appreciate it

[sultansheikh]

Excellent