The distribution of actual weight of potato chips in a 16 ounce sack is thought to be bell-shaped with a mean equal to 16 ounces and a standard deviation equal to 0.45 ounces.Based on this,between what two limits could we expect 95 percent of all sacks to weigh?
A)14 to 18 ounces
B)15.10 to 16.90 ounces
C)15.55 to 16.45 ounces
D)14.65 to 17.35 ounces

Question

Quizplus · Accepted Answer

According to the empirical rule for a normal distribution, 95% of the data falls within two standard deviations from the mean. Here, the mean is 16 ounces and the standard deviation is 0.45 ounces. Thus, the range is 16 ± (2 * 0.45), which is 15.10 to 16.90 ounces.

The Distribution of Actual Weight of Potato Chips in a 16