APFIVE Choosing a Significance Level
A researcher is deciding between α = 0.05 and α = 0.01 for a hypothesis test. Under which scenario would choosing α = 0.01 be most appropriate?
A
When the alternative hypothesis is two-sided
B
When falsely rejecting H₀ would lead to costly consequences
C
When the p-value is expected to be small
D
When the sample size is particularly large
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