Wow. Just, wow According to a 2013 poll from PublicPolicy Polling, 4% of American voters believe that shape-shifting reptilian people control our world by tak-ing on human form and gaining power. Yes, you read that correctly! (This was a poll about conspiracy theories.)Assume that’s the actual proportion of Americans whohold that belief.a) Use a binomial model to calculate the probability that,in a random sample of 100 people, at least 6% of thosein the sample believe the thing about reptilian peoplecontrolling our world.b) Use a Normal model to calculate the same probability.How does this compare with the answer in part a?c) That same poll found that 51% of American votersbelieve there was a larger conspiracy responsible forthe assassination of President Kennedy. Use a binomialmodel to calculate the probability that, in a randomsample of 100 people, at least 57% of those in thesample believe in the JFK conspiracy theory.d) Use a normal model to calculate the same probability.How does this compare with the answer in part c?e) What do these answers tell you about the importanceof checking that np and nq are both at least 10?

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A:

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A:

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.