Construct a 90​% confidence interval of the population proportion using the given information.   x=40, n=200

MATLAB: An Introduction with Applications
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Construct a 90​% confidence interval of the population proportion using the given information.
 
x=40, n=200
 

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Part 1
The lower bound is
enter your response here.
 
The upper bound is
enter your response here.
​(Round to three decimal places as​ needed.)
Table of critical values
Level of Confidence,
(1 − a)·100%
Area in Each Tail,
0.05
0.025
2
Critical Value, Zą
X
Transcribed Image Text:Table of critical values Level of Confidence, (1 − a)·100% Area in Each Tail, 0.05 0.025 2 Critical Value, Zą X
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