Use the following information for questions:
A marketing research group shows three different television advertisements for the same product to each of sixty people to see if the ads are equally effective or not. Each participant is asked which of the three advertisements they believe is most effective. The following table summarizes the counts of how many people found each advertisement to be the most effective.
-What is the value of the chi-square statistic for testing the null hypothesis that equal proportions of people find each advertisement to be most effective?
A) 7.6
B) 6.9
C) 0.38
D) 82.54

Question

Use the following information for questions:
 A marketing research group shows three different television advertisements for the same product to each of sixty people to see if the ads are equally effective or not. Each participant is asked which of the three advertisements they believe is most effective. The following table summarizes the counts of how many people found each advertisement to be the most effective. 
-What is the value of the chi-square statistic for testing the null hypothesis that equal proportions of people find each advertisement to be most effective?
A) 7.6 
B) 6.9 
C) 0.38 
D) 82.54

Quizplus · Accepted Answer

The chi-square statistic is used to test the null hypothesis about the independence of two variables or the goodness of fit of an observed distribution to an expected distribution. In this context, without the specific data, the correct answer cannot be directly calculated from the question. However, given the options, if A) 7.6 is marked as the correct answer, it suggests that this value was calculated based on the observed and expected frequencies of people's preferences for different advertisements, assuming equal proportions as the null hypothesis.

Use the Following Information for Questions