Exhibit 13-4 Below you are given a partial Excel output based on a sample of 16

Question

Exhibit 13-4
Below you are given a partial Excel output based on a sample of 16 observations.

ANOVA

df

SS

MS

F

Regression

4,853

2,426.5

Residual

   485.3

Coefficients

Standard Error

Intercept

12.924

4.425

x1

-3.682

2.630

x2

45.216

12.560

Refer to Exhibit 13-4. The t value obtained from the table which is used to test an individual parameter at the 1% level is

2.65

2.921

2.977

3.012

ANOVA

df

SS

MS

F

Regression

4,853

2,426.5

Residual

   485.3

Coefficients

Standard Error

Intercept

12.924

4.425

x1

-3.682

2.630

x2

45.216

12.560

Explanation / Answer

here we find that value of t distribution under which 99% of the all values lie such that t ditribution has (n-1) df.

So here t distrubution with 15 df as n=16

Now we get using minitab or r or any othe statistical tool

t value= a)2.65

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