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kindly do it step by step The demand for high-grade gasoline at a service station is...

kindly do it step by step

The demand for high-grade gasoline at a service station is normally distributed with mean 27500 gallons per day and standard deviation 5530. Find two value that will give a symmetric 0.88 probability interval for the amount of high-grade gasoline demanded daily.

Math   Statistics-And-Probability   
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Answer #1

        = 27500 + (-1.55 * 5530)

        = 27500 - 8571.5

        = 18928.5

        = 27500 + (1.55 *5530)

        = 27500 + 8571.5

        = 36071.5

The two values that will give a symmetric 0.88 probability interval for the amount of high-grade gasoline demanded daily are 18928.5 and 36071.5

    

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