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Your Answer Correct Answer (Used) Suppose that samples of size n = 25 are selected at random from a normal population with mean 100

Your Answer Correct Answer (Used) Suppose that samples of size n = 25 are selected at random from a normal population with mean 100 and standard deviation 10. What is the probability that the sample mean falls in the interval from y - 1.80x to + 1.20x? Express your answer to four decimal places (e.g. 0.9876). The probability is 0.8490

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