What is the P-value for this sample ( report answer accurate to four decimal places.) p-value=
What is the P-value for this sample ( report answer accurate to four decimal places.) p-value=
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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What is the P-value for this sample ( report answer accurate to four decimal places.)
p-value=
![### Statistical Hypothesis Testing Overview
#### Hypothesis Test Setup
For this test, we aim to evaluate the following hypotheses at a significance level of \(\alpha = 0.05\):
- Null Hypothesis (\(H_0\)): \(\mu = 66.8\)
- Alternative Hypothesis (\(H_a\)): \(\mu < 66.8\)
#### Sample Information
- Population is assumed to be normally distributed
- Sample Size (\(n\)): 7
- Sample Mean (\(M\)): 62.3
- Sample Standard Deviation (\(SD\)): 6.2
#### Test Statistic Calculation
The test statistic for this sample is calculated as:
- Test Statistic: \(-1.920\) (accurate to three decimal places)
#### p-value Interpretation
The next step is to determine the p-value, which should be recorded to four decimal places.
Under the provided options:
- **p-value is greater than \(\alpha\)**
#### Conclusion
Based on the calculated test statistic and the p-value comparison:
- The result leads to a decision to **not reject the null hypothesis**.
This implies that there is not enough statistical evidence, at the 0.05 significance level, to support the claim that the population mean \(\mu\) is less than 66.8.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fce79cdf7-b1ae-4527-8afa-a8738b654041%2Fe86b8be2-d6a6-46d4-9b97-4b1d977fb9b2%2Fuhjvl5l_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Statistical Hypothesis Testing Overview
#### Hypothesis Test Setup
For this test, we aim to evaluate the following hypotheses at a significance level of \(\alpha = 0.05\):
- Null Hypothesis (\(H_0\)): \(\mu = 66.8\)
- Alternative Hypothesis (\(H_a\)): \(\mu < 66.8\)
#### Sample Information
- Population is assumed to be normally distributed
- Sample Size (\(n\)): 7
- Sample Mean (\(M\)): 62.3
- Sample Standard Deviation (\(SD\)): 6.2
#### Test Statistic Calculation
The test statistic for this sample is calculated as:
- Test Statistic: \(-1.920\) (accurate to three decimal places)
#### p-value Interpretation
The next step is to determine the p-value, which should be recorded to four decimal places.
Under the provided options:
- **p-value is greater than \(\alpha\)**
#### Conclusion
Based on the calculated test statistic and the p-value comparison:
- The result leads to a decision to **not reject the null hypothesis**.
This implies that there is not enough statistical evidence, at the 0.05 significance level, to support the claim that the population mean \(\mu\) is less than 66.8.
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