A bottler of drinking water fills plastic bottles with a mean volume of 999 milliliters (mL) and standard deviation 4 mL. The fill volumes are normally distributed. What proportion of bottles have volumes greater than 994 mL?
A)1.0000
B)0.8944
C)0.9599
D)0.8925

Question

Quizplus · Accepted Answer

The proportion of bottles with volumes greater than 994 mL is the area under the normal distribution curve to the right of 994 mL. Using a standard normal distribution table, we find that the area to the right of z = (994 - 999) / 4 = -1.25 is 0.8944.

A Bottler of Drinking Water Fills Plastic Bottles with a Mean