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Question 8 of 25 This test: 25 point(s) possible Submit test This question: 1 point(s) possible The accompanying table shows results from a study in

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Question 8 of 25 This test: 25 point(s) possible Submit test This question: 1 point(s) possible The accompanying table shows results from a study in which some dental patients were treated with amalgam restorations and others were treated with composite restorations that do not contain mercury. Use a 0.05 significance level to test for independence between the type of restoration and the presence of any adverse health conditions. Do amalgam restorations appear to affect health conditions? Click the icon to view the data on dental restorations. Determine the null and alternative hypotheses. O A. Ho: The presence of any adverse health conditions is not independent of the type of restoration. - X H, : The presence of any adverse health conditions is independent of the type of restoration. Dental Restorations O B. Ho: Amalgam restorations do not affect health conditions. H, : Amalgam restorations adversely affect health conditions. Amalgam Composite O C. Ho: Amalgam restorations adversely affect health conditions. Adverse Health Condition Reported 134 144 H1 : Amalgam restorations do not affect health conditions. No Adverse Health Condition 132 18 Reported O D. Ho: The presence of any adverse health conditions is independent of the type of restoration. H , : The presence of any adverse health conditions is not independent of the type of restoration. Determine the test statistic. Print Done x2 =(Round to three decimal places as needed.) Determine the P-value of the test statistic. P-value = (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? Since the P-value is the significance level, the null hypothesis. There sufficient evidence to warrant rejection of the claim that the type of restoration and the presence of any adverse health conditions are independent. The results suggest that amalgam restorations to affect health conditions 4

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