Practice Problem #8 pg. 270: What is the power of each of the following studies, using a t test for dependent means (based on the .05 significance level)? To complete this question review the chart located on #8 pg. 270.
If you have tried to copy and paste problem, it does not work.
To answer this question, you need to refer to the provided chart on page 270. The chart will contain information you need to calculate the power for each study using a t-test for dependent means at a significance level of 0.05. The power of a statistical test represents the probability of detecting a true effect when it exists.
Here's a step-by-step process to calculate the power for each study:
1. Look at the chart provided on page 270 and find the column that corresponds to the significance level of 0.05.
2. Identify the row that represents the degrees of freedom (df) for the study. The degrees of freedom for dependent means t-tests typically depend on the sample size and the number of repeated measures.
3. Find the corresponding value in the chart for the power associated with the given significance level and degrees of freedom.
4. Repeat this process for each study mentioned in the question, using the provided chart and the specific degrees of freedom for each study.
5. Calculate the power value for each study and report the results accordingly.
Make sure to double-check the chart on page 270 to accurately determine the power for each study mentioned in the question.