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Author Question: Psychologists wish to evaluate the consistency of a standardized behavioral test. The test is ... (Read 86 times)

tyratatyanna

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on: Feb 26, 2023
Psychologists wish to evaluate the consistency of a standardized behavioral test. The test is designed to have a variance of 225. Twenty randomly sampled tests yield a variance of 240. Assuming the underlying population is normal, what is a 90% confidence interval for the variance of this test?

◦

(151.276, 450.727)


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(12.300, 21.230)


◦

(190.542, 328.899)


◦

(138.803, 511.986)

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Marked as best answer by tyratatyanna on Feb 26, 2023

Preeti

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Reply #1 on: Feb 26, 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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tyratatyanna

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Reply 2 on: Feb 26, 2023
Great answer, keep it coming :)

tandmlomax84

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Reply 3 on: Yesterday
Gracias!

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