Author Question: Two researchers are comparing a blood pressure reducing drug with a two-sided alternative ... (Read 29 times)

nautica902 · **on:** Apr 14, 2020

Two researchers are comparing a blood pressure reducing drug with a two-sided alternative hypothesis. Their test statistics show that the following z values: z₁ = 1.87 and z₂ = −2.45. Which one of these have the smaller p-value and why?
◦ z₂ = −2.45 because the bigger z-value has a bigger area between −2.45 and 2.45.
◦ z₁ = −1.87 because the area between −1.87 and 1.87 is smaller.
◦ z₂ = −2.45 because the z-value indicates almost two and a half standard deviations away from the
mean with the remaining areas smaller than 1.87.
◦ z₁ = 1.87 value because it is closer to the mean.

jackie · **Reply #1 on:** Apr 14, 2020

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