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 0.01 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. - X O A. Ho: Amalgam restorations do not affect health conditions. Dental Restorations Hy: Amalgam restorations adversely affect health conditions. O B. Ho: Amalgam restorations adversely affect health conditions. Amalgam Composite Hy: Amalgam restorations do not affect health conditions. Adverse Health Condition Reported 130 149 No Adverse Health Condition 140 O C. Ho: The presence of any adverse health conditions is not independent of the type of restoration. Reported 126 Hy: The presence of any adverse health conditions is independent of the type of restoration. O D. Ho: The presence of any adverse health conditions is independent of the type of restoration. Hy: The presence of any adverse health conditions is not independent of the type of restoration. Print Done 1 calculate the test- statistic 2) calculate the p-valueAdverse reactions of a drug used to help patients continue their abstinence from the use of alcohol have been studied in clinical trials, and the accompanying table summarizes results for digestive system effects among patients from different treatment groups. Use a 0.01 significance level to test the claim that experiencing an adverse reaction in the digestive system is independent of the treatment group. Does the drug treatment appear to have an effect on the digestive system? Click the icon to view the data on adverse reactions from treatments. Determine the null and alternative hypotheses. X Adverse Reactions from Drug Treatments O A. Ho: Drug treatment and adverse effects are not independent. Hy: Drug treatment and adverse effects are independent. Placebo Drug 1200 mg Drug 1800 mg O B. Ho: The drug treatment does not result in adverse effects on the digestive system. Adverse Effect on Hy: The drug treatment results in adverse effects on the digestive system. 174 91 9 Digestive System No Adverse Effect on O C. Ho: The drug treatment results in adverse effects on the digestive system. 1376 750 68 Digestive System Hy: The drug treatment does not result in adverse effects on the digestive system. O D. Ho: Drug treatment and adverse effects are independent. Hy: Drug treatment and adverse effects are not independent. Print Done I) calculate the test statistic ?) calculate the p-valueIn a clinical trial of the effectiveness of an herb for preventing colds, the results in the accompanying table were obtained. Use a 0.01 significance level to test the claim that getting a cold is independent of the treatment group. What do the results suggest about the effectiveness of the herb as a prevention against colds? Click the icon to view the data on herb treatments. Determine the null and alternative hypotheses. -X O A. Ho: The herb treatment prevents colds Herb Treatments Hy: The herb treatment does not prevent colds. O B. Ho: Getting a cold and treatment group are not independent. Treatment Group Hy: Getting a cold and treatment group are independent. Placebo Herb: 20% Extract Herb: 60% Extract O C. Ho: Getting a cold and treatment group are independent. Got a Cold 87 52 38 Did Not Get a Cold 17 3 9 Hy: Getting a cold and treatment group are not independent. O D. Ho: The herb treatment does not prevent colds. Hy : The herb treatment prevents colds. " Calculate the test statistic Print Done 2) calculate the p value