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please help me figure out the 2 question below, I am having a hard time with these 2 question.. Thank you Quiz: MOdule 6 RGVieW

please help me figure out the 2 question below, I am having a hard time with these 2 question.. Thank you

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Quiz: MOdule 6 RGVieW Quiz Time Hemaining::50:33 Submituiz WSWHOptS 4 Fofmtoompletejv B 'I'lislllmptspossihli SE Question Help {I A manufacturer withdrew Drug V from the market after a study revealed that its use was associated with an increase in the risk of heart attack. The experiment was placebocontrolled, randomized, and doubleblind. Out of 1271 people taking Drug if there were 316 heart attacks, and out of 129-9 people taking the placebo. there were 23 heart attacks. Perform a hypothesis test to test whether those who take Drug V have a greater rate of heart attack than those who take a placebo. Use a level at signicance of [Hi]. Can we conclude that Drug V causes an increased risk of heart attack? Determine the hypotheses for this test. Let p1 represent the population proportion of heart attacks for those who take Dmg V and let p2 represent the population proportion of heart attacks for those who take the placebo. Choose the correct answer below. on- H01P1'Pz 05- H03P1'P2 00- Ho=P1=P2 Hatp1=pz Ha: P1 =92 Ha: P1 #92 09- HULP1=P2 OE- HDIP'I'EPz OF- Ho=P1=P2 H5191 P2 Find the test statistic for this test. z = {Round to three decimal places as needed.) Find the pvalue for this test. pvalue = :| (Round to three decimal places as needed.) What is the conclusion for this test? 0 Do not reject Ho- 0 Reject Ho. Can we conclude that Druc V causes an increased risk of heart attack? Click to select your anewer(s). G _I:I EEQuestlon Help | 1- Historically, about 52% of the population of a certain country believed that the planet's temperature was rising ("global wan-I'Iing'i. A March 2010 poll wanted to determine whether this proportion had changed. The poll interviewed 1083 adults in the population, and 609 said they believed that global warming was real. (Assume these 1088 adults represented a simple random sample.) Complete parts a through c below. a. What percentage in the sample believed global warming was real in 2010'? 3=|:% {Round to one decimal place as needed.) Is this more or less than the historical 52%? C) more Oless b. Test the hypothesis that the proportion of the population who believe global warming is real has changed. Use a signicance level of 0.05. What are the null and altemative hypotheses\"? O A. Hu:p=0.52 Ha:p.52 O a. Hu:p>0.52 Ha:p<.52 oc. hu:p ha:p>0.52 O D. Hu:p=0.52 Ha:p>0.52 O E. Hn:p$[}.52 Click to select your answes). O

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