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Author Question: Summary statistics are given for independent simple random samples from two populations. Preliminary ... (Read 93 times)

NClaborn

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on: Apr 7, 2020
Summary statistics are given for independent simple random samples from two populations. Preliminary data analyses indicate that the variable under consideration is normally distributed on each population. Decide whether use of the pooled t-test and pooled t-interval procedure is reasonable.  Explain your answer.

1 = 143.9, s1 = 13.2, n1 = 7, 2 = 212.9, s2 = 43.7, n2 = 17
◦ Reasonable; the sample standard deviations suggest that the two population standard deviations differ, however since the sample sizes are roughly equal, it is reasonable to use the pooled t-test.
◦ Reasonable; the sample standard deviations suggest that the two population standard deviations are equal.
◦ Not reasonable; the sample standard deviations suggest that the two population standard deviations are equal, however since the sample sizes are not roughly equal, it is not reasonable to use the pooled t-test.
◦ Not reasonable; the sample standard deviations suggest that the two population standard deviations differ and the sample sizes are not roughly equal.
Introductory Statistics ¦ Weiss ¦ 10th Edition
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Marked as best answer by NClaborn on Apr 7, 2020

Cnarkel

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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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NClaborn

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Reply 2 on: Apr 7, 2020
Thanks for the timely response, appreciate it

scikid

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Reply 3 on: Yesterday
Wow, this really help

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