SOLUTION: Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to recieve a special award. What is the

Algebra ->  Probability-and-statistics -> SOLUTION: Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to recieve a special award. What is the      Log On


   

Question 286233: Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 words per minute. The top 3% of the class is to recieve a special award. What is the minimum number of words per minute a student would have to read in order to get the award?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Mrs Smith reading class can read a mean of 175 words per minute with a standard deviation of 20 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 have to read in order to get the award?
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Find the z-score with a right tail of 3%: invNorm(0.97) = 1.8808
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Use x = zs + u to solve for x:
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x = 1.8808*20 + 175
x = 212.62
Round up to 213 words per minute
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Cheers,
Stan H.