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Statistics
Tutor: None Selected Time limit: 1 Day

Examine the following ANOVA summary table:

 

Source   SS                        df                           MS                                   F

Between 495.34                  4                           123.84                             8.16

Within      682.56                45                           15.17

Total        1,177.90               49

 

  1. How many groups were there in the study?
  2. Assuming equal numbers of subjects per group, how many subjects were in each group?
Jun 7th, 2015

Thank you for the opportunity to help you with your question!

Since between has 4 degrees of freedom, there are 5 groups.

Since the total has 49 degrees of freedom, the total number of observations is 50

Thus there are 5 groups each group having 10 observations each.


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 7th, 2015
  1. Conversely, if you reject the null hypothesis, what is the probability that you have made a Type 1 error?


Jun 7th, 2015

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