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Author Question: A population proportion is to be estimated. Estimate the minimum sample size needed to achieve the ... (Read 81 times)

darbym82

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on: Jan 18, 2020

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  researcher wishes to estimate the proportion of left handed people among a certain population. In a random sample of 1000 people from the population, 61.9%  are left-handed. Find the 95% confidence interval for the population proportion of  left-handed people.
◦ 0.5874  <  p  <  0.6506
◦ 0.5883  <  p  <  0.6497
◦ 0.5973  <  p  <  0.6407
◦ 0.6180  <  p  <  0.6200

Question 2

A population proportion is to be estimated. Estimate the minimum sample size needed to achieve  the specified margin of error with a 95% degree of confidence.

E = 0.05
◦ 20
◦ 400
◦ 800
◦ 200
Statistical Reasoning for Everyday Life ¦ Bennett, Briggs, Triola ¦ 5th Edition
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Marked as best answer by darbym82 on Jan 18, 2020

orangecrush

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Reply #1 on: Jan 18, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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darbym82

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Reply 2 on: Jan 18, 2020
Excellent

atrochim

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Reply 3 on: Yesterday
Wow, this really help

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