Deople who use the pilil lose, alter one week, an average (mean) of 1.8 pounds with a standard deviation of 1.02 pounds. In a recent study, a group of 45 people who used this pill were interviewed. The study revealed that these people lost a mean of 1.68 pounds afte one week. If the producer's dlaim is correct, what is the probability that the mean weight loss after one week on this pill for a random sample of 45 individuals will be 1.68 pounds or less? Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

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