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Construct a confidence interval for assuming that each sample is from a normal population. (a) x x = 29, = 4, n = 13, 90
Construct a confidence interval forassuming that each sample is from a normal population.
(a)x
x
= 29,= 4,n= 13, 90 percentage confidence.(Round your answers to 2 decimal places.)
The 90% confidence interval is fromto.
(b)x
x
= 137,= 12,n= 25, 99 percentageconfidence.(Round your answers to 2 decimal places.)
The 99% confidence interval is fromto.
(c)x
x
= 13.3,= 1.6,n= 54, 95 percentage confidence.(Round your answers to 3 decimal places.)
The 95% confidence interval is fromto.
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