A researcher wanted to determine which method would help smokers quit. He divided a group of 183 test subjects into three groups. Group 1 would get "the patch", Group 2 would get a medication, and Group 3 would have no intervention. At the end of the study, this is what he found. Group 1 Group 2 Group 3 52 54 51 9 4 Did Not Quit Quit 13 *Source: Harris Poll 1) Determine the null and alternative hypotheses. Select the correct pair. O Ho: The methods for helping people quit smoking are the same Ha: The methods for helping people quit smoking follow a different distribution
A researcher wanted to determine which method would help smokers quit. He divided a group of 183 test subjects into three groups. Group 1 would get "the patch", Group 2 would get a medication, and Group 3 would have no intervention. At the end of the study, this is what he found. Group 1 Group 2 Group 3 52 54 51 9 4 Did Not Quit Quit 13 *Source: Harris Poll 1) Determine the null and alternative hypotheses. Select the correct pair. O Ho: The methods for helping people quit smoking are the same Ha: The methods for helping people quit smoking follow a different distribution
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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![### Smoking Cessation Study Analysis
A researcher conducted a study to evaluate the effectiveness of different methods to help smokers quit. Participants were divided into three groups:
- **Group 1**: Received the "patch"
- **Group 2**: Received a medication
- **Group 3**: No intervention (control group)
At the study's conclusion, the results were as follows:
| | Group 1 | Group 2 | Group 3 |
|--------|---------|---------|---------|
| Did Not Quit | 52 | 54 | 51 |
| Quit | 13 | 9 | 4 |
*Source: Harris Poll*
#### Analysis Steps:
1. **Determine the Null and Alternative Hypotheses:**
Select the correct pair.
- \( H_0 \): The methods for helping people quit smoking are the same
- \( H_a \): The methods for helping people quit smoking follow a different distribution
2. **Determine the Test Statistic:**
Calculate and round your answer to two decimals.
\(\chi^2 = \) [Insert calculation box]
3. **Determine the p-value:**
Calculate and round your answer to four decimals.
p-value = [Insert calculation box]
4. **Make a Decision:**
Assume \(\alpha = 0.05\).
- \( \circ \) Reject the null hypothesis
- \( \circ \) Fail to reject the null hypothesis
5. **Pick a Conclusion:**
- \( \circ \) There is not sufficient evidence to support the claim that the methods for helping people quit smoking are different.
- \( \circ \) There is sufficient evidence to support the claim that the methods for helping people quit smoking are different.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fee710977-90c8-4f84-9cb1-1102aa3efb9b%2F5dfa6bf9-f8fb-479a-82dd-2aad2ae2b230%2F2t3trpm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Smoking Cessation Study Analysis
A researcher conducted a study to evaluate the effectiveness of different methods to help smokers quit. Participants were divided into three groups:
- **Group 1**: Received the "patch"
- **Group 2**: Received a medication
- **Group 3**: No intervention (control group)
At the study's conclusion, the results were as follows:
| | Group 1 | Group 2 | Group 3 |
|--------|---------|---------|---------|
| Did Not Quit | 52 | 54 | 51 |
| Quit | 13 | 9 | 4 |
*Source: Harris Poll*
#### Analysis Steps:
1. **Determine the Null and Alternative Hypotheses:**
Select the correct pair.
- \( H_0 \): The methods for helping people quit smoking are the same
- \( H_a \): The methods for helping people quit smoking follow a different distribution
2. **Determine the Test Statistic:**
Calculate and round your answer to two decimals.
\(\chi^2 = \) [Insert calculation box]
3. **Determine the p-value:**
Calculate and round your answer to four decimals.
p-value = [Insert calculation box]
4. **Make a Decision:**
Assume \(\alpha = 0.05\).
- \( \circ \) Reject the null hypothesis
- \( \circ \) Fail to reject the null hypothesis
5. **Pick a Conclusion:**
- \( \circ \) There is not sufficient evidence to support the claim that the methods for helping people quit smoking are different.
- \( \circ \) There is sufficient evidence to support the claim that the methods for helping people quit smoking are different.
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