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LEVEL OF CONFIDENCE / TUTORIALOUTLET DOT COM
Level of confidence  FOR MORE CLASSES VISIT
www.tutorialoutlet.com Reasoning. Choose the
correct answer below. 90, because as the level
of confidence decreases, zc increases. 99,
because as the level of confidence increases, zc
increases. 99, because as the level of
confidence increases, zc decreases. 90, because
as the level of confidence decreases, zc
decreases. 2. Construct the confidence interval
for the population mean µ. c 0.98, x 9.1, s
0.4, and n 58 A 98 confidence interval for µ
is , . (Round to two decimal places as needed.)
3. Construct the confidence interval for the
population mean µ. c 0.95, x 16.6, s 8.0,
and n 95 A 95 confidence interval for µ is , .
(Round to one decimal place as needed.) 4. Find
the minimum sample size n needed to estimate µ
for the given values of c, s, and E.
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