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Help 3. In a random sample of 12 dental assistants, the mean annual earnings was $31,721 and the sample standard deviation was $5260. Construct a

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3. In a random sample of 12 dental assistants, the mean annual earnings was $31,721 and the sample standard deviation was $5260. Construct a 99% confidence interval for the population mean annual earning for dental assistants. Be sure to write a complete sentence that summarizes your

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