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3) Suppose a random sample of size 144 is drawn from a population With a mean value of 72. If the probability that a sample

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3) Suppose a random sample of size 144 is drawn from a population With a mean value of 72. If the probability that a sample mean is greater than 65 equals 0.63, What is the variance of the population? (SHOW WORK; 7 point)

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