Compute a confidence interval for the true probability

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Reference no: EM131400667

For a random sample of 200 adults, each adult was classified as having a high or low income, and each was asked whether they are optimistic about the future. The results were

	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 .95 confidence interval for the true probability.

Reference no: EM131400667

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