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(1 point) A random sample of 20 size AA batteries for toys yield a mean of...

(1 point) A random sample of 20 size AA batteries for toys yield a mean of 3.54 hours with standard deviation, 1.08 hours. (a) Find the critical value, t*, for a 99% CI. t* = ______(b) Find the margin of error for a 99% CI._____

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