A Paint Manufacturer Discovers That the Mean Volume of Paint

Multiple Choice

A paint manufacturer discovers that the mean volume of paint in a gallon-sized pail is 1.1 gallons with a standard deviation of 0.1 gallons. The paint volumes are approximately bell-shaped. Estimate The percent of pails with volumes between 1.00 gallon and 1.20 gallons.

A) almost all (greater than 95%)
B) 68%
C) 32%
D) 95%