In each situation, explain whether it would be more appropriate to treat the observed data as a sample from a larger population or as data from the whole population. a. An instructor surveys all the students in her class to determine whether students would prefer a take-home exam or an in-class exam. b. The Gallup Organization polls 1000 individuals to estimate the percent of American adults who approve of the President’s job performance.

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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.