Lab 16- One Proportion Confidence Intervals Be sure to state all necessary conditions for inference. Problem 1: To study the addictive effects of heroin, researchers for the National Institute on Drug Abuse reported that, in a random sample of 220 heroin users, 23% of them developed an opioid addiction. Create and interpret a 90% confidence interval for the true proportion of heroin users that develop an opioid addiction. inaradomsamplenceintheralfothetrueproportion of heroin users that Problem 2: A statistics professor asked his students whether or not they were registered to vote. In a sample of 50 of his students (randomly sampled from his 700 students), 35 said they were registered to vote. Find a 95% confidence interval for the true proportion of the professor's students who were registered to vote.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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