Education Technology

Candy Pieces

Published on 03/05/2012

Activity Overview

Students will be introduce to hypothesis testing. Students are given the number of pieces by color in a bag of candy. They are asked if they think the bag could have come from a manufacturing process designed to produce equal proportions of each color. They will then use a chi-square test for goodness-of-fit to determine if there is a significant difference between the proportions they find in the sample and those they would expect if the manufacturer produced equal proportions of each color.

Key Steps

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    On page 1.3, students are given data from a bag of candy. To find the expected number of candies of each color, students are to add up the number of pieces of each color (85) and then divide by the number of colors (5). They should get 17 pieces.