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You measure 20 watermelons' weights, and find they have a mean weight of 63 ounces. Assume the population standard deviation is 4.8 ounces. Based on

You measure 20 watermelons' weights, and find they have a mean weight of 63 ounces. Assume the population standard deviation is 4.8 ounces. Based on this, what is the maximal margin of error associated with a 9% confidence interval for the true population mean watermelon weight. Give your answer as a decimal, to two places F ounces

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