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. Catherine's null hypothesis is ______________.

Question

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.  Catherine's null hypothesis is ______________.

Quizplus · Accepted Answer

The null hypothesis for this case is that "children in household" is independent of "preferred package". This means that the presence of children in the household should not have any influence on the preferred package. In other words, the proportion of households that prefer each type of package should be the same regardless of the presence of children in the household. Therefore, B is the best choice.

Catherine Chao,Director of Marketing Research,is Evaluating Consumer Acceptance of Alternative