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asmith134

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Question 1

A population proportion is to be estimated from the sample described. Approximate the 95% confidence interval. Round your answer to four decimal places, if necessary.

A poll of 1300 voters in one district showed that 55% of them would favor stricter gun control laws. Find the 95% confidence interval for the population proportion favoring stricter gun control laws.
◦ 0.5492 < p < 0.5508
◦ 0.5224 < p < 0.5776
◦ 0.5223 < p < 0.5777
◦ 0.5305 < p < 0.5695

Question 2

A population proportion is to be estimated from the sample described. Approximate the 95% confidence interval. Round your answer to four decimal places, if necessary.

A medical researcher wishes to estimate what proportion of babies  born at a particular hospital are born by Caesarean section. In a random sample of 144 births at the hospital, 29% were Caesarean sections.  Find the  95% confidence interval for the population proportion.
◦ 0.2144  <  p  <  0.3656
◦ 0.2365  <  p  <  0.3435
◦ 0.2067  <  p  <  0.3733
◦ 0.2837  <  p  <  0.2963


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Marked as best answer by asmith134 on Jan 18, 2020

Dinolord

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asmith134

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Reply 2 on: Jan 18, 2020
Excellent


parshano

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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