You are here (click or tap to change) Back to Chapter 8 Main Page
Problem 1
A consumer group claims that the Doritos snack pack size has an average weight below 1.75 ounces which is the weight labeled on the bags. A random sample of 49 bags had an average weight of 1.71 ounces and a standard deviation of 0.13 ounces. At the 5% significance level, test the consumer group’s claim. Give the practical interpretation of the outcome of the test.
Ask the Professor