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Module 6 Review Quiz 53 Submitemz EEQuestlan Help ' i: HistoricallyI the percentage of residents of a certain muntrywho support stricter gun control laws has been 51%. A recent poll of 949 people showed 525 in favor of stricter gun control laws. Assume the poll was given to a random sample of people. Test the claim that the proportion of those favoring stricter gun control has changed. Perform a hypothesis test, using a signicance level of 0.05. Slate the null and altemative hypotheses. O A. He: The population proportion that supports stricter gun control is not 0.51. pd0.51. Ha: p = 0.51 O B. Ho: The population proportion that supports stricter gun control is 0.51, p=0.51. Ha: p 3- 0.51 O o. Ho: The population proportion that supports stricter gun control is greater than 0.51, p > 0.51. Ha: p 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