Mathematics, 10.02.2021 20:50, diamond8189

A restaurant that specializes in hamburgers claims that the weights of its hamburger patties are approximately normally distributed with a mean of 8 ounces (1/2 pound). You and your friends think the
hamburgers are actually smaller than that. Over the course of several weeks, you and friends come to
the store on randomly selected days and randomly selected times and buy 5 hamburgers. You weight
them and discover that the mean weight of these 5 hamburgers is only 7.2 ounces.

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A restaurant that specializes in hamburgers claims that the weights of its hamburger patties are ap...