SOLUTION: (1 point) A random sample of 19 size AA batteries for toys yield a mean of 3.21 hours with standard deviation, 0.85 hours.
(a) Find the critical value, t*, for a 99% CI. t* =
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-> SOLUTION: (1 point) A random sample of 19 size AA batteries for toys yield a mean of 3.21 hours with standard deviation, 0.85 hours.
(a) Find the critical value, t*, for a 99% CI. t* =
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Question 1188747: (1 point) A random sample of 19 size AA batteries for toys yield a mean of 3.21 hours with standard deviation, 0.85 hours.
(a) Find the critical value, t*, for a 99% CI. t* =
(b) Find the margin of error for a 99% CI. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! That is t*(0.995, df=18)=2.878
margin of error is t*s/sqrt(n)=2.878*0.85/sqrt(19)
=0.56 hr is the margin of error
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[interval is (2.65 h, 3.77 h)]
