Catherine Chao, Director of Marketing Research, is evaluating consumer acceptanc
ID: 3181329 • Letter: C
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.
Children in Household
Pre-teenagers
teenagers
none
Preferred
Pump
30
20
10
Package
Tube
10
10
20
Using a significance level of 0.01, the appropriate decision is ______________.
A. reject the null hypothesis and conclude there is no evidence of association between the two variables
B. do not reject the null hypothesis and conclude there is no evidence of association between the two variables
reject the null hypothesis and conclude there is evidence of association between the two variables
D. do not reject the null hypothesis and conclude there is evidence of association between the two variables
Children in Household
Pre-teenagers
teenagers
none
Preferred
Pump
30
20
10
Package
Tube
10
10
20
Explanation / Answer
The statistical software output for this problem is:
Contingency table results:
Rows: var1
Columns: None
Chi-Square test:
Since p - value is less than 0.01, we reject the null hypothesis and conclude that there is association between two variables.
Option C is correct.
Pre - Teenagers Teenagers None Total Preferred Pump 30 20 10 60 Packaged Tube 10 10 20 40 Total 40 30 30 100Related Questions
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