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Author Question: Based on data from two very large independent samples, two students tested a hypothesis about ... (Read 259 times)

fasfsadfdsfa

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on: Aug 30, 2019

Question 1

Trainers need to estimate the level of fat in athletes to ensure good health. Initial tests were based on a small sample but now the trainers double the sample size for a follow-up test. The main purpose of the larger sample is to…
◦ decrease the standard deviation of the sampling model.
◦ reduce confounding due to other variables.
◦ decrease the variability in the population.
◦ reduce non-response bias.
◦ reduce response bias.

Question 2

Based on data from two very large independent samples, two students tested a hypothesis about equality of population means using α = 0.02. One student used a one-tail test and rejected the null hypothesis, but the other used a two-tail test and failed to reject the null hypothesis. Which of these might have been their calculated value of t?
◦ 2.66
◦ 1.22
◦ 2.22
◦ 1.55
◦ 1.88
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
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Marked as best answer by fasfsadfdsfa on Aug 30, 2019

epscape

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Reply #1 on: Aug 30, 2019
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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fasfsadfdsfa

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Reply #2 on: Aug 30, 2019
Thank you!


epscape

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Reply #3 on: Aug 30, 2019
Always glad to help...


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