Zachary completes a hypothesis test and finds that he rejects the null hypothesis. which statement gives a reason for rejecting
the null hypothesis?
the z-statistic is less than 0.
the z-statistic lies in the critical region.
the z-statistic lies outside the critical region.
the z-statistic is greater than 0.

The z-statistic lies in the critical region

Step-by-step explanation:

When a hypothesis test is performed, the decision to reject or not reject the null hypothesis is made on basis of following observations:

In the given statement Zachary rejects the Null Hypothesis, this means the z-statistic she calculated must have been inside the critical or rejection region. Hence the correct answer would be:

The z-statistic lies in the critical region

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.