APFIVE Conclusion Of A Z-Test For A Proportion
A political analyst wants to determine if the proportion of voters who support a certain candidate is different from 50%. After collecting data, the analyst calculates a test statistic of z = 2.7. Using α = 0.05, what is the correct conclusion?
A
Reject H₀; evidence suggests p > 0.5 only
B
Reject H₀; evidence suggests p ≠ 0.5
C
Reject H₀; evidence suggests p < 0.5 only
D
Fail to reject H₀; insufficient evidence that p ≠ 0.5
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