Test the hypothesis that o,
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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![### Testing Hypothesis for Standard Deviations
#### Problem Overview:
Test the hypothesis that σ1 < σ2 at the α = 0.05 level of significance for the given sample data. Assume that the populations are normally distributed. Use the P-value approach.
#### Sample Data:
| | Population 1 | Population 2 |
|------------------|--------------|--------------|
| **n** | 52 | 25 |
| **s** | 8.3 | 11.9 |
#### Hypothesis Statements:
State the null and alternative hypotheses for this test.
- **H0 (Null Hypothesis)** should be stated using "≥":
\( H_0: \sigma_1 \geq \sigma_2 \)
- **H1 (Alternative Hypothesis)** should be stated using "<":
\( H_1: \sigma_1 < \sigma_2 \)
#### P-Value Calculation:
Use technology to find the P-value for this test.
- **The P-value is** [ Empty Box ].
- (Round to three decimal places as needed.)
#### Conclusion:
Make a statement regarding the null hypothesis and draw a conclusion for this test.
1. **Since the P-value is** [ Drop-down Box ] **the α = 0.05 level of significance**,
- **Option to accept/reject the null hypothesis**: [ Drop-down Box to choose "reject" or "do not reject" ]
2. **Sufficient evidence statement**:
- "There [ Drop-down Box: "is" or "is not"] sufficient evidence to conclude that the standard deviation of Population 1 is significantly less than the standard deviation of Population 2 at the α = 0.05 level of significance."
---
### Graphs or Diagrams:
The image does not contain any graphs or diagrams. The problem focuses on hypothesis testing for comparing the standard deviations of two populations using the P-value approach, given certain sample data.
This explanation and format can help students understand and work step-by-step through the process of hypothesis testing for standard deviation comparisons.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff4175707-d254-4126-a791-753312836f35%2F74b3d150-24e9-4226-b20f-7effd0e2f690%2Fw8r4eb6_processed.png&w=3840&q=75)
Transcribed Image Text:### Testing Hypothesis for Standard Deviations
#### Problem Overview:
Test the hypothesis that σ1 < σ2 at the α = 0.05 level of significance for the given sample data. Assume that the populations are normally distributed. Use the P-value approach.
#### Sample Data:
| | Population 1 | Population 2 |
|------------------|--------------|--------------|
| **n** | 52 | 25 |
| **s** | 8.3 | 11.9 |
#### Hypothesis Statements:
State the null and alternative hypotheses for this test.
- **H0 (Null Hypothesis)** should be stated using "≥":
\( H_0: \sigma_1 \geq \sigma_2 \)
- **H1 (Alternative Hypothesis)** should be stated using "<":
\( H_1: \sigma_1 < \sigma_2 \)
#### P-Value Calculation:
Use technology to find the P-value for this test.
- **The P-value is** [ Empty Box ].
- (Round to three decimal places as needed.)
#### Conclusion:
Make a statement regarding the null hypothesis and draw a conclusion for this test.
1. **Since the P-value is** [ Drop-down Box ] **the α = 0.05 level of significance**,
- **Option to accept/reject the null hypothesis**: [ Drop-down Box to choose "reject" or "do not reject" ]
2. **Sufficient evidence statement**:
- "There [ Drop-down Box: "is" or "is not"] sufficient evidence to conclude that the standard deviation of Population 1 is significantly less than the standard deviation of Population 2 at the α = 0.05 level of significance."
---
### Graphs or Diagrams:
The image does not contain any graphs or diagrams. The problem focuses on hypothesis testing for comparing the standard deviations of two populations using the P-value approach, given certain sample data.
This explanation and format can help students understand and work step-by-step through the process of hypothesis testing for standard deviation comparisons.
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