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(5) The mean income for NYC teachers is u = $56,000. Given a = $12,000. A sample of 36 teachers is chosen. Find the probability

(5) The mean income for NYC teachers is u = $56,000. Given a = $12,000. A sample of 36 teachers is chosen. Find the probability that:. (a) The sample mean 3: > $54,000 (b) the sampling error is less than $4,000 {ndz Pr(52,000

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