Assuming that this regression was based on a sample of several hundred individua

Question

Assuming that this regression was based on a sample of several hundred individuals, a 95% confidence interval for the slope of the regression line would be given by:

A. 12.095 +- (plus or minus) 1.96(4.211)
B. .0385 +- (plus or minus) 1.96(4.211)
C. .0385 +- (plus or minus) 1.96(5.783)
D. .0385 +-(plus or minus) 2.58(.0728)
E. .0385 +-(plus or minus) 1.96(.0728)

SUEN ANSWEH NET Question 8 of 20 Multiple Cholce: Please select the best answer and clck Regression Analysis The regression equation is 12.1 0,0385 Predictor coef Stdev ratio 12.095 4.211 2.87 Constant 0.03849 0.07260 0.53 0.611 s m 5.783 R-sq m 3,4% R-so(adu) 0.0% Assuming that this fegression was tased on B sample of se individuals, a 95% confidence rile tval be given by A 12 C951 9614.2 O B. 0385 1964 211

Explanation / Answer

Since the sample size is large, the t critical value will be approximately equal to 1.96 for 95% confidence interval.

Hence,

95% confidence interval for the slope of the regression line would be given by:

.0385 +-(plus or minus) 1.96(.0728)

Option E is correct

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