Hypothesis Testing for Two Related (Paired) Populations.

You may use a computer program of your choice.

Choose a variable that will allow the use of related samples. For example, you might wish to see if a persons number of hours of night sleep is increased by drinking 8 oz of milk before bedtime, or if a persons skill improved after a therapy, etc. Select a sample of data (10 to 25) value pairs (e.g. before and after), and then complete the following:

Write a brief statement of the purpose of the study?

Define the population. What was the population?

State the hypothesis for the study.

Select a level of significance.

State how the sample was selected.

Show the raw data.

Decide which statistical test is appropriate and compute the test statistic (z or t). Why is the test appropriate?

Find the critical value(s).

State the decision.

State the conclusion. Summarize the results.

Construct a confidence interval. State the conclusion. Summarize the results.

Hypothesis Testing for Two Related (Paired) Populations.

You may use a computer program of your choice.

Choose a variable that will allow the use of related samples. For example, you might wish to see if a persons number of hours of night sleep is increased by drinking 8 oz of milk before bedtime, or if a persons skill improved after a therapy, etc. Select a sample of data (10 to 25) value pairs (e.g. before and after), and then complete the following:

Write a brief statement of the purpose of the study?

Define the population. What was the population?

State the hypothesis for the study.

Select a level of significance.

State how the sample was selected.

Show the raw data.

Decide which statistical test is appropriate and compute the test statistic (z or t). Why is the test appropriate?

Find the critical value(s).

State the decision.

State the conclusion. Summarize the results.

Construct a confidence interval. State the conclusion. Summarize the results.