SOLUTION: Ms. Swift's reading class can read an average of 170 words per minute with a standard deviation of 25 words per minute. The top 3% of the class is to receive a special award. Wha

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Question 695876: Ms. Swift's reading class can read an average of 170 words per minute with a standard deviation of 25 words per minute. The top 3% of the class is to receive a special award. What is the minimum number of words per minute a student would need to read in order to get the award? Assume the data is normally distributed.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Ms. Swift's reading class can read an average of 170 words per minute with a standard deviation of 25 words per minute. The top 3% of the class is to receive a special award. What is the minimum number of words per minute a student would need to read in order to get the award? Assume the data is normally distributed.
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Find the z-value with a left-tail of 0.97.
invNorm(0.97) = 1.8808
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Solve for x using x = z*s + u
x = 1.8808*25 + 170
x = 217 words per minute
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Cheers,
Stan H.
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