Catherine Chao, Director of Marketing Research, is evaluating consumer acceptance of alternative toothpaste packages. She wonders whether acceptance is influenced by children in the household. Her staff prepared the following contingency table from a random sample of 100 households. Children in Household Pre- teenagers none teenagers Preferred Pump 30 20 10 Package Tube 10 10 Using a-.05, the observed value of chi-square is, O 18.79 O 16.79 O 5.28 O 9.49 O 13.19 20

Catherine Chao, Director of Marketing Research, is evaluating consumer acceptance of alternative toothpaste packages. She wonders whether acceptance is influenced by children in the household. Her staff prepared the following contingency table from a random sample of 100 households. Children in Household Pre- teenagers none teenagers Preferred Pump 30 20 10 Package Tube 10 10 Using a-.05, the observed value of chi-square is, O 18.79 O 16.79 O 5.28 O 9.49 O 13.19 20

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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