What does a p-value represent in a t-test or Z-test?
- All of the above
- The probability of observing the sample data if the null hypothesis is true
- The probability of rejecting the null hypothesis when it is true
- The probability of the sample mean being equal to the population mean
In a t-test or Z-test, the p-value represents the probability of obtaining a sample statistic as extreme or more extreme than the observed statistic, assuming the null hypothesis is true.
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