1) In a four-year psychedelic-mushroom experiment, 93 of the 300 subjects reported experiencing "strong or extreme fear" after using psychedelic mushrooms. c) Make and interpret a 95% confidence interval (p±E) for the percentage of all people who experience "strong or extreme fear" after using psychedelic mushrooms.

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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.