Suppose that the middle 68 of families of a certain

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Suppose that the middle 68% of families of a certain demographic monthly food expenditures fall between 293.45 and 315.73. Give an approximate estimate of the standard deviation of the expenditures. Assume the expenditures have a normal distribution.

Give solution as would be done on a Ti-84 calculator please.

Reference no: EM13632816

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