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In a recent year, the average movie ticket cost $7.89. In a random sample of 50 movie tickets from various areas, what is the probability

In a recent year, the average movie ticket cost $7.89. In a random sample of 50 movie tickets from various areas, what is the probability that the mean cost is between $7.00 and $7.50, given that the population standard deviation is $1.39? Use Table E and enter your answer correct to four decimal places

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