Question: The paper Answer Changing on Multiple Choice Tests Journal of

The paper “Answer Changing on Multiple- Choice Tests” (Journal of Experimental Education [1980]: 18– 21) reported that for a group of 162 college students, the average number of responses changed from the correct answer to an incorrect answer on a test containing 80 multiple-choice items was 1.4. The corresponding standard deviation was reported to be 1.5. Based on this mean and standard deviation, what can you tell about the shape of the distribution of the variable number of answers changed from right to wrong? What can you say about the number of students who changed at least six answers from correct to incorrect?

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