When taking a 15 question multiple choice test, where each question has five possible answers, it would be unusual to get  or more questions correct by guessing alone. Use the Range Rule of Thumb for Unusual Values to answer this question. Give your answer above as a whole number.

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Asked Nov 14, 2019
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When taking a 15 question multiple choice test, where each question has five possible answers, it would be unusual to get  or more questions correct by guessing alone. Use the Range Rule of Thumb for Unusual Values to answer this question. Give your answer above as a whole number.

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Expert Answer

Step 1

From the given information,

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Sample size (n)-15 1 Probability of success (p) 5 Mean np 15 5 = 3 Standard deviation npq 15 5 5 1.55

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Step 2

Now, estimating the minimum and the maximum usu...

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MIN"usual"value = -2s 3-1.55 1.45 1 MAX "usual" value = +2s 3+1.55 4.55 5

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