For the same problem we fitted another model which only incl

For the same problem we fitted another model which only includes x2 and the for this model turned out to be Compute the test statistic for testing

Solution

From the given SS, SS of b2 =   316218-183735=132483

source

DF

SS

MS

F

regression b2

1

132483

132483

8.866879

regression b1,b3

2

4439

2219.5

0.148548

residual

12

179296

14941.33

total

15

316218

Table value of F(2,12) at 0.05 level =3.89

Calculated value =0.148548   < 3.89, the table value

The null hypothesis is not rejected

source	DF	SS	MS	F
regression b2	1	132483	132483	8.866879
regression b1,b3	2	4439	2219.5	0.148548
residual	12	179296	14941.33
total	15	316218