In the Physician's Health Study, 22,071 malephysicians participated in a study to determinewhether taking a daily low-dose aspirin reducedthe risk of heart attacks. The men were randomlyassigned to two groups and the study was double-blind. After five years, 104 of the 11,037 mentaking a daily low dose aspirin had hada heartattack while 189 of the 11,034 men taking aplacebo had had a heart attack.' Does taking adaily low-dose aspirin reduce the risk of heartattacks?1"Final report on the aspirin component of theongoing Physicians' Health Study. SteeringCommittee of the Physicians' Health StudyResearch Group", New England Journal of Medicine,1989 Jul 20; 321(3): 129-135.(a) State the null and alternative hypotheses.Use subscripts I for the treatment group(taking the daily low-dose aspirin) and 2 forthe control group (taking a placebo).:: <i education.wiley.com+ Ch 6.3-6.4 WileyPlus Homework< >-/1 E !of 6(a) State the null and alternative hypotheses.Use subscripts 1 for the treatment group(taking the daily low-dose aspirin) and 2 forthe control group (taking a placebo).::: P2::: P2Ho:VsHạIN:: (b) Give the test statistic and the p-value.Round your intermediate results to fourdecimal places.Round your answer for the test statistic totwo decimal places and your answer for the p-value to three decimal places.test statistic =p-value =What is the conclusion?• Ho-eTextbook and MediaDoes taking a daily low-dose aspirin reducethe risk of heart attacke2education.wiley.com+ Ch 6.3-6.4 WileyPlus Homework-/1 Eof 6(c) Does taking a daily low-dose aspirin reducethe risk of heart attacks?O YesO NoeTextbook and Media(d) Why can we infer a causal relationshipfrom the results?Because the p-value is so lowBecause the p-value is so highBecause the results are significantand the results come from anexperimentBecause the results are significantand the results come from anobservational study

In the Physician's Health Study, 22,071 male physicians participated in a study to determine whether taking a daily low-dose aspirin reduced the risk of heart attacks. The men were randomly assigned to two groups and the study was double- blind. After five years, 104 of the 11,037 men taking a daily low dose aspirin had had a heart attack while 189 of the 11,034 men taking a placebo had had a heart attack.' Does taking a daily low-dose aspirin reduce the risk of heart attacks?