A bottler of drinking water fills plastic bottles with a mean volume of 993 milliliters(mL)and standard deviation 6 mL. The fill volumes are normally distributed. Whatproportion of bottles have volumes between 991 mL and 997 mL?
A)0.3779
B)0.7486
C)0.3707
D)0.3377

Question

Quizplus · Accepted Answer

The proportion of bottles with volumes between 991 mL and 997 mL is the area under the normal distribution curve between these two values. Using a standard normal distribution table, we find that the area between z = -0.33 and z = 0.67 is 0.3779.

A Bottler of Drinking Water Fills Plastic Bottles with a Mean