The formula described in this section for determining sample size corresponds to a confidence level of 95% to within an amount B. What would be the appropriate formula for determining sample size when the desired confidence level is 90%? On=1.645a\ B 1.960 B On n = (2.330) B 2.580 On= B On= 2.6760 B What would be the appropriate formula for determining sample size when the desired confidence level is 98%? 1.64502

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