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Author Question: A statistician consulting for a state department of transportation conducts a study to see if the ... (Read 172 times)

SAVANNAHHOOPER23

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on: Aug 30, 2019

Question 1

Which of the following would increase the power of a test?
I. Increase the sample size
II. Decrease the significance level
III. Increase alpha
◦ II only
◦ I only
◦ I and III
◦ I and II
◦ III only

Question 2

A statistician consulting for a state department of transportation conducts a study to see if the proportion of drivers who are intoxicated has decreased since last year.
H0: The proportion is the same as last year
Ha: The proportion is less than last year.
The P-value of a significance test is greater than the significance level. She can conclude:
◦ the alternative hypothesis is true.
◦ there is enough evidence to reject the null hypothesis.
◦ the test was too powerful.
◦ there is not enough evidence to reject the null hypothesis.
◦ the null hypothesis is true.
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
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Marked as best answer by SAVANNAHHOOPER23 on Aug 30, 2019

asdfasdf

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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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SAVANNAHHOOPER23

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Reply #2 on: Aug 30, 2019
Excellent


asdfasdf

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Reply #3 on: Aug 30, 2019
Great! Please up vote :D


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