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Mathematics, 07.04.2020 16:10 Ashu638
3. Last year, Lipton Tea Company conducted a mall intercept study at six regional malls around the country and found that 20% of the public preferred tea over coffee as a midafternoon hot drink. This year, Lipton wants to have a nationwide telephone survey performed with random digit dialing. What sample size should be used in this year’s study to achieve an accuracy level of ±2.5% at the 99% level of confidence? What about at the 95% level of confidence? (4 points)
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3. Last year, Lipton Tea Company conducted a mall intercept study at six regional malls around the c...
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