Probability Using Normal Distribution of SAT Scores

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25. The College Board American College Testing Program reported a population mean SAT score of µ 1020 (The World Almanac 2003). Assume that the population standard deviation is 100.

a. What is the probability that a random sample of 75 students will provide a sample mean SAT score within 10 of the population mean?
b. What is the probability a random sample of 75 students will provide a sample mean SAT score within 20 of the population mean?

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25. The College Board American College Testing Program reported a population mean SAT score of µ 1020 (The World Almanac 2003). Assume that the population standard deviation is 100.

a. What is the probability that a random sample of 75 students will provide a sample mean SAT score within 10 of the population mean?

Mean within 10 of the population mean

Mean= M = 1020
Standard deviation =s = 100 ...

Solution Summary

Probability calculations have been done using Normal Distribution in the solution.

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