Mathematics, 12.07.2021 15:20 shayleewright

A random sample of 20 size AA batteries for toys yield a mean of 3.27 hours with standard deviation, 1.17 hours. (a) Find the critical value, t, for a 99% CI. t =
.6504
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(b) Find the margin of error for a 99% CI.

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A random sample of 20 size AA batteries for toys yield a mean of 3.27 hours with standard deviation,...