# Z Value and Test Statistic of a population

Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test the null hypothesis.

=0.05 for a left-tailed test.

-1.645

1.96

1.645

-1.96

Use the given information to find the P-value.

The test statistic in a right-tailed test is z = 1.43.

0.500

0.0434

0.4236

0.0764

https://brainmass.com/statistics/hypothesis-testing/z-value-and-test-statistic-of-a-population-134291

#### Solution Summary

The solution calculates test statistics for given populations and distributions.

$2.19