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You randomly sample 200 adults, determine whether their income is high or low, and ask them whether they are optimistic about the future. The results are

	Yes	No	Total
High	35	42	77
Low	80	43	123
Total	115	85	200

What is the estimated probability that a randomly sampled adult has a high income and is optimistic? Compute a 0.95 confidence interval for the true probability using the R function binomci. What is the estimated probability that someone is optimistic, given that the person has a low income?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92208391

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