Do people with smartphones have similar CD buying habits as those without smartphones? A survey asks a group of students if they buy CDs or not. It also asks if the students own a smartphone or not. The researchers want to determine if the distribution of CD buying is the same for smartphone owners as for those without smartphones. The data are recorded in the contingency table below, and the first few steps of a chi-square test for homogeneity are summarized. (The observed values are above the expected values.) CDs No CDs Row Total 18 13 31 Smartphone 13.9 17.1 8 19 27 No Smartphone 12.1 14.9 Column Total 26 32 58 . Ho: The distributions of the two populations are the same. Ha: The distributions of the two populations are not the same. . a = 0.01 . The test statistic, Xo = 4.700. . Critical value: Xo.05 = 6.635. Which is the correct conclusion of our homogeneity test, at the 1% significance level