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The instructor of an English course is interested in knowing if there is a difference in...

The instructor of an English course is interested in knowing if there is a difference in the mean grades on the project between the Peterborough and Oshawa classes. Summary data for these classes are as follows:

Ptbo Class Osh Class

Mean 73.00. 67.00

N 101 61

SD 10.50 11.00

Is there a significant difference in the average grades of these two classes?

Compute the power of the findings, explaining what it means (7 grades)

What is the effect size? Interpret the effect size

Math   Statistics-And-Probability   
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