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Author Question: Concerning inference on two independent population means, the pooled variance estimate is: (Read 55 times)

ksmithunr

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on: Feb 26, 2023
Concerning inference on two independent population means, the pooled variance estimate is:

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a way of estimating variance that relies on the information provided by only one of the samples.


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an unbiased estimator of the parameter\(\style{font-family:Times New Roman;}{\sigma_1^2-\sigma_2^2}\).


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a combined (using a weighted average) estimate for the unknown variance of two populations.


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a less efficient but easier way of estimating population variances as compared to using two separate variance estimates (one for each population).

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Marked as best answer by ksmithunr on Feb 26, 2023

jojo120419

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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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ksmithunr

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Reply 2 on: Feb 26, 2023
Wow, this really help

amynguyen1221

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Reply 3 on: Yesterday
:D TYSM

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