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Author Question: In a poll of 278 voters in a certain city, 65% said that they backed a bill which would limit growth ... (Read 32 times)

Diane

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on: Jan 18, 2020

Question 1

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.

A researcher wishes to estimate the proportion of children in a certain neighborhood who are living with only one parent. She wishes to achieve a margin of error of E = 0.021. What is the minimum sample size needed?
◦ 2268
◦ 48
◦ 1134
◦ 4536

Question 2

In a poll of 278  voters in a certain city, 65% said that they backed a bill which would limit growth and development  in their city. The margin of error in the poll was reported as 6 percentage points (with a 95% degree of confidence). Which   statement is correct?
◦ There is not enough information to determine whether the margin of error is consistent with the sample size.
◦ The sample size is too small to achieve the stated margin of error.
◦ The reported margin of error is consistent with the sample size.
◦ For the given sample size, the margin of error should be  smaller than stated.
Statistical Reasoning for Everyday Life ¦ Bennett, Briggs, Triola ¦ 5th Edition
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Marked as best answer by Diane on Jan 18, 2020

Moriaki

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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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Diane

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Reply 2 on: Jan 18, 2020
YES! Correct, THANKS for helping me on my review

frankwu0507

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Reply 3 on: Yesterday
:D TYSM

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