Probability that a simple random sample

Reference no: EM13975391

For a random variable that is normally distributed, with µ, 5 80 and a 5 10, determine the probability that a simple random sample of 25 items will have a mean that is

a. greater than 78.

b. between 79 and 85.

c. less than 85.

Reference no: EM13975391

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