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Confidence intervals 8.6 Student's t Confidence Intervals: Exercises 1. Suppose you draw a random sample of size 20 (with sample mean x and standard deviation

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Confidence intervals

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8.6 Student's t Confidence Intervals: Exercises 1. Suppose you draw a random sample of size 20 (with sample mean x and standard deviation s) from a population with unknown mean and unknown standard deviation. Find t, in Formula 85 above for the con- fidence levels 0.90, 0.95, and 0.99

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