A numbered spinner is spun 25 times and the results are recorded in the table. Numbered Sections 1 2 3 4 5 Frequency 4 5 7 6 3 A goodness-of-fit chi-square test is to be used to test the null hypothesis that the spinner is fair. At a significance level of a = 0.05, what is the value of chi-square and the appropriate conclusion? O x2 = 4.0; fail to reject the null hypothesis O x2 = 4.0; reject the null hypothesis O x2 = 2.0; fail to reject the null hypothesis O x2 = 2.0; reject the null hypothesis O x2 = 14.8; fail to reject the null hypothesis