Question

TABLE 12-3

The director of cooperative education at a state college wants to examine the effect of cooperative education job experience on marketability in the work place. She takes a random sample of four students. For these four, she finds out how many times each had a cooperative education job and how many job offers they received upon graduation. These data are presented in the table below.

Student Co-op Jobs Job Offer

1 1 4

2 2 6

3 1 3

4 0 1

1) Referring to Table 12-3, the least squares estimate of the slope is ________.

2) Referring to Table 12-3, the total sum of squares (SST) is ________.

Answer 1

1)

2)

SUMMARY OUTPUT
Regression Statistics
Multiple R	0.980580676
R Square	0.961538462
Adjusted R Square	0.942307692
Standard Error	0.5
Observations	4
ANOVA
	df	SS	MS	F	Significance F
Regression	1	12.5	12.5	50	0.019419324
Residual	2	0.5	0.25
Total	3	13
	Coefficients	Standard Error	t Stat	P-value	Lower 95%
Intercept	1	0.433012702	2.309401077	0.147197135	-0.863103284
x	2.5	0.353553391	7.071067812	0.019419324	0.978782539

SST = 13