Construct the requested confidence interval. A media poll of 500 air travelers surveyed in national airports found that 370 favor tighter security procedures in boarding planes. Construct a 90% confidence interval for the proportion of all air travelers who are in favor of tighter security procedures. -3. a) .74+1.645 (.74)(.26) 500 b) .74±1.645, (.5)(.5) 500 c) .74±1.96, (.74)(.26) 500 d) 370 1.645 (370)(130) 500

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Construct the requested confidence interval.
A media poll of 500 air travelers surveyed in national airports found that 370 favor tighter security
procedures in boarding planes. Construct a 90% confidence interval for the proportion of all air
travelers who are in favor of tighter security procedures.
-3.
a)
.74+1.645
(.74)(.26)
500
b)
.74±1.645,
(.5)(.5)
500
c)
.74±1.96,
(.74)(.26)
500
d)
370 1.645
(370)(130)
500
Transcribed Image Text:Construct the requested confidence interval. A media poll of 500 air travelers surveyed in national airports found that 370 favor tighter security procedures in boarding planes. Construct a 90% confidence interval for the proportion of all air travelers who are in favor of tighter security procedures. -3. a) .74+1.645 (.74)(.26) 500 b) .74±1.645, (.5)(.5) 500 c) .74±1.96, (.74)(.26) 500 d) 370 1.645 (370)(130) 500
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