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Author Question: We have calculated a confidence interval based on a sample of n = 180. Now we want to get a better ... (Read 239 times)

joblessjake

  • Hero Member
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  • Posts: 555
on: Aug 30, 2019

Question 1

Which is true about a 99% confidence interval based on a given sample?
I.   The interval contains 99% of the population.
II.  Results from 99% of all samples will lie in this interval.
III. The interval is wider than a 95% confidence interval would be.
◦ I only
◦ III only
◦ II only
◦ none
◦ II and III only

Question 2

We have calculated a confidence interval based on a sample of n = 180. Now we want to get a better estimate with a margin of error only one third as large. We need a new sample with n at least…
◦ 312
◦ 1620
◦ 60
◦ 20
◦ 540
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Marked as best answer by joblessjake on Aug 30, 2019

momolu

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Reply #1 on: Aug 30, 2019
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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joblessjake

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Reply 2 on: Aug 30, 2019
YES! Correct, THANKS for helping me on my review

duy1981999

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Reply 3 on: Yesterday
Wow, this really help

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