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10 cards from this deck
To determine if a population parameter differs from a hypothesised value
Large sample sizes where Central Limit Theorem applies
The assumption that there is no effect or no difference
The assumption that there is an effect or a difference
Probability of rejecting H0H_0H0 when it is actually true
0.05 (5%) or 0.01 (1%)
Probability of obtaining a result at least as extreme as observed, assuming H0H_0H0 is true
Threshold that the test statistic is compared against to decide whether to reject H0H_0H0
z=xˉ−μ0σnz = \frac{\bar{x} - \mu_0}{\frac{\sigma}{\sqrt{n}}}z=nσxˉ−μ0
Reject H0H_0H0 if p-value < significance level
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