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Author Question: Find an estimate of the sample size needed to obtain the specified margin of error for the 95% ... (Read 44 times)

serike

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on: Jan 18, 2020

Question 1

Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval of a population mean.

Margin of error = 28, sample standard deviation = 300
◦ 12,857
◦ 230
◦ 459
◦ 21

Question 2

Find an estimate of the sample size needed to obtain the specified margin of error for the 95% confidence interval of a population mean.

A  researcher wishes to estimate the mean amount of money spent per month on food by households in a certain neighborhood. She desires a margin of error of . Past studies suggest that a population standard deviation of is reasonable. Estimate the minimum sample size needed to estimate the population mean with the stated accuracy.
◦ 1457
◦ 38
◦ 17,480
◦ 728
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Marked as best answer by serike on Jan 18, 2020

stano32

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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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serike

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

blakcmamba

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Reply 3 on: Yesterday
Wow, this really help

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