Significance Testing: Z-Tests

In this
assignment students will demonstrate their understanding of the
distribution of means doing all steps of hypothesis testing.

For each problem students will write out all steps of hypothesis testing:

State the null and research hypotheses.
Set the level of risk associated with the null hypothesis.
Select the appropriate test statistic.
Compute the test statistic value (called the obtained value).
Determine the value needed for
rejection of the null hypothesis using the appropriate table of critical
values for the particular statistic.
Compare the obtained value and the critical value.
Make your decision.

After completing of the steps of hypothesis tests, write out your results in APA format and in easy-to-understand language.

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