Calculate exactly correct percentage, Basic Statistics

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Study A                              Study B

r = .64                          r = .77

df = 18                         df = 121

p<.05                           p<.01

1. In using the data from study A to make predictions, what percent of the time would you expect predictions to be exactly correct?

2. Which study would have the smallest margin of error in predicting one variable from knowledge of the other?

 


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