Question

Construct a 95% confidence interval for the slope with the dataset below: X Y 12 100 13 110 14 120 15 115 16 145 17 189 18 167 Select one: a. upper = 12.56, lower = 5.87 b. upper = 15.78, lower = 6.21 c. upper = 20.32, lower = 7.11 d. upper = 21.32, lower = 8.23

Answer 1

x	y
12	100
13	110
14	120
15	115
16	145
17	189
18	167

SUMMARY OUTPUT
Regression Statistics
Multiple R	0.90
R Square	0.81
Adjusted R Square	0.77
Standard Error	15.80
Observations	7
ANOVA
	df	SS	MS	F	Significance F
Regression	1	5266.29	5266.29	21.09	0.01
Residual	5	1248.57	249.71
Total	6	6514.86
	Coefficients	Standard Error	t Stat	P-value	Lower 95%	Upper 95%
Intercept	-70.57	45.19	-1.56	0.18	-186.74	45.60
x	13.71	2.99	4.59	0.01	6.04	21.39

95% confidence interval

(6.04,21.39)