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Author Question: Use the two-standard-deviations F-interval procedure to find the required confidence interval. ... (Read 143 times)

anjilletteb

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on: Apr 7, 2020
Use the two-standard-deviations F-interval procedure to find the required confidence interval. Assume that independent samples have been randomly selected from the two populations and that the variable under consideration is normally distributed on both populations.

A researcher is interested in comparing the amount of variation in women's scores on a certain test and the amount of variation in men's scores on the same test. Independent random samples of 11 men and 13 women yielded the following scores.

Men: 72, 60, 52, 87, 66, 74, 95, 50, 81, 70, 72
Women:   70, 78, 62, 96, 75, 68, 41, 74, 80, 47, 73, 94, 65

Construct a 95% confidence interval for the ratio, where σ1 is the population standard deviation of the scores for men and σ2 is the population standard deviation of the scores for women.
(Note:  and )
◦ 0.48 to 1.62
◦ 0.48 to 1.68
◦
0.62 to 2.16

◦ 0.26 to 3.20
Introductory Statistics ¦ Weiss ¦ 10th Edition
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Marked as best answer by anjilletteb on Apr 7, 2020

succesfull

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Reply #1 on: Apr 7, 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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anjilletteb

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Reply 2 on: Apr 7, 2020
Gracias!

nyrave

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Reply 3 on: Yesterday
Wow, this really help

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