Find the confidence interval for estimating the population proportion for parts (a) through (c). a. 99% confidence level; n = 750; p= 0.20 b. 90% confidence level; n= 260; p= 0.05 C. a = 0.03; n= 335; p= 0.80 %3D

Find the confidence interval for estimating the population proportion for parts (a) through (c). a. 99% confidence level; n = 750; p= 0.20 b. 90% confidence level; n= 260; p= 0.05 C. a = 0.03; n= 335; p= 0.80 %3D

ENGR.ECONOMIC ANALYSIS

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Chapter1: Making Economics Decisions

Section: Chapter Questions

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Find the confidence interval for estimating the population proportion for parts (a) through (c).
a. 99% confidence level; n = 750; p= 0.20
%3D
b. 90% confidence level; n =260; p= 0.05
%3D
c. a = 0.03; n = 335; p = 0.80

a. The confidence interval is <P<
(Round to four decimal places as needed.)
b. The confidence interval is<
(Round to four decimal places as needed.)
<P<.
c. The confidence interval is<P<
(Round to four decimal places as needed.)

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