Question 8 The frequency distribution shows the results of 200 test scores. Are the test scores normally distributed? Use alpha = 0.10. Complete parts (a) through (d). Using a chi-square goodness-of- fit test, you can decide, with some degree of certainty, whether a variable is normally distributed. In all chi-square tests for normality, the null and alternative hypotheses are as follows. H0: The test scores have a normal distribution. Ha: The test scores do not have a normal distribution. Find the expected frequencies. (Round to the nearest integer as needed.) Determine the critical value, ,and the rejection region. Choose the correct rejection region below. Calculate the test statistic. chi2 = (Round to three decimal places as needed.) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim. H0. At the 10% significance level, there enough evidence to reject the claim that the test scores are normally distributed. Solution (a) observedexpectedO - E(O - E).