A famous news and media company has tracked the latest polling in eight swing states in the US that could potentially decide the 2020 election between the two presidential candidates, Donald Trump and Joe Biden. Let's assume that Bid en needs more than half of the voters to support him in order to win the elections. During his presidential campaign in Pennsylvania, Biden announced that he would win Pennsylvania as 632 out of a sample of 1246 male voters support him according to the polling in Pennsylvania. a) Test if Biden will win the election in Pennsylvania. Use the p-value approach at the 5% level of significance.  b) If you advise the Bid en campaign team of your results from the test above, what is the implication of a Type I Error on the Biden campaign strategy? Include the definition and the in context interpretation of a Type I Error.  c) Comment on the method of choosing this sample. Provide one reason to explain your comment.

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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.