urchased is atmost 600 gallons.b. What is the approximate value of the 95thpercentile for the total amount purchased by50 randomly selected customers.

Let X represent the amount of gasoline (gallons) purchased by a randomly selected customer at a gas station. Suppose that the mean value and standard deviation of X are 11.5 and 4.0, respectively.a. In a sample of 50 randomly selected customers,what is the approximate probability thatthe total amount of gasoline purchased is atmost 600 gallons.b. What is the approximate value of the 95thpercentile for the total amount purchased by50 randomly selected customers.

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