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Step-by-step explanation for 12.10 Imagine that one of the following 95 percent confidence intervals estimates the effect of vitamin C on IQ scores: 95% Confidence

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12.10 Imagine that one of the following 95 percent confidence intervals estimates the effect of vitamin C on IQ scores:

95% Confidence Interval Lower LimitUpper Limit110010229599310210649011159198(a) Which one most strongly supports the conclusion that vitamin C increases IQ scores? 3(b) Which one implies the largest sample size? 1

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