MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The city council is considering a law that would ban the use of plastic bags, straws, and eating utensils at all city
|
|
Democrat |
Republican |
row marginals |
Support |
For |
36 |
19 |
55 |
|
Opposed |
12 |
33 |
45 |
|
column marginals |
48 |
52 |
100 |
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- The mayor of a town believes that 32% of the residents favor annexation of a new bridge. A community group believes this is inaccurate and decides to perform a hypothesis test to dispute the mayor's claim. After information is gathered from 160 voters and a hypothesis test is completed, the group fails to reject the null hypothesis at the 0.01 level. What is the conclusion regarding the mayor's claim?arrow_forwardAccording to a recent poll, the percentage of Americans who would vote for the incumbent president is 53%. If a random sample of 100 people in New York results in 45% who would vote for the incumbent, test the claim that the percentage of people in New York who would vote for the incumbent president is different from 53%. Use the following results and a 0.10 significance level to state your decision about H0. H0 : p=0.53 H1 : p≠0.53 test statistic: z = -1.6 p value = 0.1090arrow_forwardSelect all that apply: We should reject H0. We should not reject H0. At the 1% significance level, the data do not provide sufficient evidence to conclude that the amount of time American teenagers watch television per week is different from 14.1 hours. At the 1% significance level, the data provide sufficient evidence to conclude that the amount of time American teenagers watch television per week is different from 14.1 hours.arrow_forward
- Based on these tables, would you accept or reject the hypothesis that individuals in bad neighborhoods commit more crime?arrow_forwardPap smears are a diagnostic test used to detect cervical cancer. Although the test has high specificity, it also has low sensitivity. As a result, women have to be screened often. Using the definitions of sensitivity and specificity, explain why increased frequency of screening is needed when sensitivity is low and specificity is high.arrow_forwardIdentify the TEST for the below scenario and explain why you will choose the test for the analysis: In a hospital for one year the comorbidities of alcoholic and non-alcoholic patients were studied. Which test will be used to understand that alcoholic patients are more susceptible to comorbidities?arrow_forward
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