Probability mean from sample families have pounds of garbage

Reference no: EM13133794

A 2001 survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds, and that garbage quantity is approximately normally distributed. Find the probability that the mean from a sample of 30 families will have between 17 and 18 pounds of garbage.

Reference no: EM13133794

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