SOLUTION: At Jen and Perry Ice Cream Company, the machine that fills 1-pound cartons of Top Flavor ice cream is set to dispense 12 ounces of ice cream into every carton. However, some carton

Question 925344: At Jen and Perry Ice Cream Company, the machine that fills 1-pound cartons of Top Flavor ice cream is set to dispense 12 ounces of ice cream into every carton. However, some cartons contain slightly less than and some contain slightly more than 12 ounces of ice cream. The amounts of ice cream in all such cartons have a normal distribution with a mean of 12 ounces and a standard deviation of 0.24 ounce.
Find the probability that a randomly selected carton contains 12.1488 to 12.1968 ounces of ice cream. Round your answer to four decimal places.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
mean 12oz and a SD = 0.24oz.
.......
Using the z-values to determine the Probability:
P(12.1488 < x < 12.1968) = P(.1488/.24 < z < .1968/.24)
.......
Using a TI calculator 0r similarly a Casio fx-115 ES plus
P(.1488/.24 < z < .1968/.24) = normalcdf(.62, .82) = .0615

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