Use the following to answer the questions below:
Computer output from a regression analysis is provided.
The regression equation is Y = 72.9 - 0.519 X

-The sample size in this situation is n = 157. Construct a 95% confidence interval for the population slope. Round the margin of error to four decimal places.
A) -0.9038 to -0.1352
B) -0.9009 to -0.1381
C) -0.8976 to -0.1414
D) -0.9138 to -0.1252

Question

Use the following to answer the questions below:
Computer output from a regression analysis is provided.
The regression equation is Y = 72.9 - 0.519 X
 
-The sample size in this situation is n = 157. Construct a 95% confidence interval for the population slope. Round the margin of error to four decimal places.
A) -0.9038 to -0.1352 
B) -0.9009 to -0.1381 
C) -0.8976 to -0.1414 
D) -0.9138 to -0.1252

Quizplus · Accepted Answer

t* = 1.975 (df = 155)
-0.5195 ± 1.975(0.1946)
-0.5195 ± 0.3843
-0.9038 to -0.1352

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