Consider a test of H0: μ = 30 performed with the computer. SPSS reports a two-tailed p-value of 0.0164. Make the appropriate conclusion for the given situation: Ha: μ 30, z = -2.4, α = 0.01
A) Fail to reject H0
B) Reject H0

Question

Consider a test of H0: μ = 30 performed with the computer. SPSS reports a two-tailed p-value of 0.0164. Make the appropriate conclusion for the given situation: Ha: μ > 30, z = -2.4, α = 0.01
A) Fail to reject H0
B) Reject H0

Quizplus · Accepted Answer

The p-value for a one-tailed test (Ha: μ > 30) would be half of the two-tailed p-value, which is 0.0082. However, since the z-value is negative (-2.4), it indicates that the sample mean is less than 30, not greater. Therefore, we fail to reject H0.

Consider a Test of H0: μ = 30 Performed with the Computer