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  3. 7 31 is this what p means a randomized comparative

7 31 Is this what P means A randomized comparative experiment examined the effect of...

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7 31 Is this what P means A randomized comparative experiment examined the effect of the attractiveness of an instructor on the performance of students on a quiz given by the instructor The researchers found a statistically significant difference in quiz scores between students in a class with an instructor rated as attrac tive and students in a class with an instructor rated as unattractive P 0 005 When asked to explain the meaning of P 0 005 a student says This means there is only probability of 0 005 that the null hypoth esis is true Explain what P 0 005 really means in a way that makes it clear that the student s explanation is wrong

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