A random sample of 20 size AA batteries for toys yield a mean of 2.74 hours with standard deviation, 1.01 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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A random sample of 20 size AA batteries for toys yield a mean of 2.74 hours with standard deviation, 1.01 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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