Multiple Choice
Exhibit 15-2.A sports analyst wants to exam the factors that may influence a tennis player's chances of winning.Over four tournaments,he collects data on 30 tennis players and estimates the following model: , where Win is the proportion of winning,Double Faults is the percentage of double faults made,and Aces is the number of Aces.A portion of the regression results are shown in the accompanying table.
Refer to Exhibit 15-2.Excel shows that the 95% confidence interval for β1 is [-0.12,-0.002].When determining whether or not Double Faults is significant at the 5% significance level,he
A) Rejects ,and concludes that Double Faults is significant.
B) Does not reject ,and concludes that Double Faults is significant.
C) Rejects ,and concludes that Double Faults is not significant.
D) Does not reject
Correct Answer:

Verified
Correct Answer:
Verified
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