A manager at a local bank analyzed the relationship between monthly salary (y, in $) and length of service (x, measured in months) for 30 employees. She estimates the following model: Salary = ?0 + ?1Service + ?. The following table summarizes a portion of the regression results. CoefficientsStandard Errort-statp-valueLower 95%Upper 95%Intercept784.92322.25 124.951,444.89Service9.193.20 2.6415.74Using the 95% confidence interval, what is the conclusion to the following hypothesis test:H0: b1 = 0; HA: b1 ? 0?
A. At the 5% significance level, do not reject H0 and cannot conclude that service is significant.
B. At the 5% significance level, reject H0 and conclude that service is significant.
C. At the 5% significance level, reject H0 and cannot conclude that service is significant.
D. At the 5% significance level, do not reject H0 and conclude that service is significant.
Answer: B
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