A study was recently conducted in which people were asked to indicate which news medium was their preferred choice for national news.The following data were observed:
Given this data,if we wish to test whether the preferred news source is independent of age,for an alpha = .05 level,the critical value from the chi-square table is based on 8 degrees of freedom.

Question

A study was recently conducted in which people were asked to indicate which news medium was their preferred choice for national news.The following data were observed:
  Given this data,if we wish to test whether the preferred news source is independent of age,for an alpha = .05 level,the critical value from the chi-square table is based on 8 degrees of freedom.

Quizplus · Accepted Answer

We cannot determine the critical value of chi-square based on the given information. The critical value would depend on the significance level (alpha), the degrees of freedom (which we are given as 8), and the specific chi-square distribution being used (which we are not given). However, we can determine the chi-square test statistic and its corresponding p-value using the observed frequencies and expected frequencies, and compare the p-value to the significance level to determine whether there is evidence of independence between preferred news source and age.

A Study Was Recently Conducted in Which People Were Asked