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10 questions from this quiz
Assumption of no effect or difference
Assumption of effect or difference
0.05 (5%) or 0.01 (1%)
Prob. of result as extreme, assuming H0H_0H0
Threshold test statistic must exceed
z=xˉ−μ0σnz = \frac{\bar{x} - \mu_0}{\frac{\sigma}{\sqrt{n}}}z=nσxˉ−μ0
-1.645
980 hours
When test statistic < critical value
When p-value < significance level
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