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Author Question: After computing a confidence interval, the user believes the results are meaningless because the ... (Read 75 times)

elarge

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on: Mar 25, 2023

Question 1

A sample of 225 elements from a population with a standard deviation of 75 is selected. The sample mean is 180. The 95% confidence interval for μ is


◦

105.0 to 225.0


◦

175.0 to 185.0


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100.0 to 200.0


◦

170.2 to 189.8



Question 2

After computing a confidence interval, the user believes the results are meaningless because the width of the interval is too large. Which one of the following is the best recommendation?


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Increase the level of confidence for the interval.


◦

Decrease the sample size.


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Increase the sample size.


◦

Reduce the population variance.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by elarge on Mar 25, 2023

delmiss

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Reply #1 on: Mar 25, 2023
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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elarge

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Reply 2 on: Mar 25, 2023
Gracias!

bigcheese9

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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