Rather than increase food prices,manufacturers sometimes decrease the amount of food in a package,often imperceptibly.Suppose Acme Foods wants to raise the price of peanut butter but still sell each jar for $3.19.The current jar contains 10 oz.of peanut butter.Assume the Weber ratio for felt weight is .05.Which of the following is the smallest-size jar that will still feel the same as the 10 oz.jar to most people?

Question

Quizplus · Accepted Answer

The Weber ratio indicates that a change in weight must be at least 5% to be noticeable. A 5% reduction from 10 oz. is 0.5 oz., so the smallest jar that will feel the same is 9.95 oz.

Rather Than Increase Food Prices,manufacturers Sometimes Decrease the Amount of Food