Multiple Choice
Your subjects complete a pretest to assess their cognitive skills and have a mean score of 62% on the pretest. Then they complete your intervention and a post-test with the following scores: 82%, 79%, 47%, 65%, 81%, 57%, 57%, 52% and 76%. What was the mean on the posttest?
A) 67%
B) 65%
C) 66%
D) Unable to determine with the given information
Correct Answer:

Verified
Correct Answer:
Verified
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