In a study of high school students at least 16 years of age, researchers obtained survey results summarized in the accompanying table. Use a 0.05 significance level to test the claim of independence between texting while driving and driving when drinking alcohol. Are those two risky behaviors independent of each other? Click the icon to view the table of survey results. Determine the null and alternative hypotheses. Ho: Texting while driving is independent of driving while drinking alcohol. H: Texting while driving and driving while drinking alcohol are dependent. Determine the test statistic. x2 = (Round to two decimal places as needed.)