(Answered) The scores on a standardized reading test are known to be

Statistics

The scores on a Standardized Reading Test are known to be normally distributed with a mean of µ = 10 and standard deviation of σ = 1.5. (a) Find the probability that a single individual selected at random scores between 9.4 and 10.6 on this test. (b) Find the probability that a random sample of 25 students has a mean score between 9.4 and 10.6 on this test.

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