CitySearch.com reports that 55% of its users are in the 18-to-30 age demographic, 35% are in the 31-to-45 demographic, and the remaining 10% are in the 46-and-older demographic.In a recent survey of 200 randomly selected CitySearch.com users, 102 users were in the 18-to-30 age demographic, 84 were in the 31-to-45 demographic, and the rest were in the 46-and-older demographic You conduct a chi-square test to determine whether this sample result is enough to reject a null hypothesis that the age group distribution of CitySearch.com users is as the website describes.Report the p-value that for the test.(You will need a statistical calculator.)
A).128
B).075
C).034
D).010

Question

Quizplus · Accepted Answer

The chi-square test compares the observed frequencies with the expected frequencies. The p-value of 0.075 suggests that there is not enough evidence to reject the null hypothesis at a typical significance level (e.g., 0.05), indicating that the sample distribution is consistent with the reported distribution.