A group of researchers wants to know whether men (population 1) are more likely than women (population 2) to contract a novel coronavirus. They surveyed two random samples of 490 men and 480 women who were tested and found that 52 men and 91 women in the samples tested positive. Can you conclude that the proportion of positive tests among men is less than the proportion of positive tests among women? Use level of significance 5%. Procedure: Select an answer Step 1. Hypotheses Set-Up: the where Select an answer Select an answer Ho: Select an answer and the units are Select an answer Ha: Select an answer and the test is Select an answer Step 2. The significance level a (Round the answer to 3 Step 3. Compute the value of the test statistic: Select an answer decimal places) Step 4. Testing Procedure: (Round the answers to 3 decimal places) CVA PVA Provide the critical value(s) for the Rejection Region: Compute the P-value of the test statistic: left CV is and right CV is P-value is Step 5. Decision: CVA PVA Is the test statistic in the rejection region? Is the P-value less than the significance level? Conclusion: Select an answer have sufficient evidence to reject the null At 5% significance level we Select an answer hypothesis in favor of the alternative hypothesis. Jump to Answer Step 6. Interpretation: Question Help: Video Submit Question
A group of researchers wants to know whether men (population 1) are more likely than women (population 2) to contract a novel coronavirus. They surveyed two random samples of 490 men and 480 women who were tested and found that 52 men and 91 women in the samples tested positive. Can you conclude that the proportion of positive tests among men is less than the proportion of positive tests among women? Use level of significance 5%. Procedure: Select an answer Step 1. Hypotheses Set-Up: the where Select an answer Select an answer Ho: Select an answer and the units are Select an answer Ha: Select an answer and the test is Select an answer Step 2. The significance level a (Round the answer to 3 Step 3. Compute the value of the test statistic: Select an answer decimal places) Step 4. Testing Procedure: (Round the answers to 3 decimal places) CVA PVA Provide the critical value(s) for the Rejection Region: Compute the P-value of the test statistic: left CV is and right CV is P-value is Step 5. Decision: CVA PVA Is the test statistic in the rejection region? Is the P-value less than the significance level? Conclusion: Select an answer have sufficient evidence to reject the null At 5% significance level we Select an answer hypothesis in favor of the alternative hypothesis. Jump to Answer Step 6. Interpretation: Question Help: Video Submit Question
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A group of researchers wants to know whether men (population 1) are more likely than women
(population 2) to contract a novel coronavirus. They surveyed two random samples of 490 men
and 480 women who were tested and found that 52 men and 91 women in the samples tested
positive.
Can you conclude that the proportion of positive tests among men is less than the proportion of
positive tests among women? Use level of significance 5%.
Procedure: Select an answer
Step 1. Hypotheses Set-Up:
where Select an answer
the
Ho: Select an answer
Select an answer
and the
units are Select an answer
Ha: Select an answer
, and the test is Select an answer
Step 2. The significance level a
(Round the answer to 3
Step 3. Compute the value of the test statistic: Select an answer
decimal places)
Step 4. Testing Procedure: (Round the answers to 3 decimal places)
CVA
PVA
Provide the critical value(s) for the Rejection Region:
Compute the P-value of the test
statistic:
left CV is
and right CV is
P-value is
Step 5. Decision:
CVA
PVA
Is the test statistic in the rejection region?
Is the P-value less than the significance level?
Conclusion: Select an answer
Step 6. Interpretation:
At 5% significance level we Select an answer have sufficient evidence to reject the null
hypothesis in favor of the alternative hypothesis.
Question Help: Video
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