: _____ ( to 2 decim
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 ?
The p-value is: _____ ( to 2 decimals)

Transcribed Image Text:**Hypothesis Testing for Mean GPA**
**Context:** Test the claim that the mean GPA of night students is larger than 3.2 at the 0.01 significance level.
**Null and Alternative Hypotheses:**
- \( H_0: \mu \leq 3.2 \)
- \( H_1: \mu > 3.2 \)
**Test Type:** Right-tailed
**Sample Data:**
- Based on a sample of 25 people, the sample mean GPA was 3.23 with a standard deviation of 0.05.
**Test Statistic:**
- Calculated as 3 (rounded to 2 decimals)
**P-value:**
- (Value not provided; consider statistical software or z-tables for calculation based on \( Z \) value)
**Conclusion Criteria:**
- Based on the significance level of 0.01, determine whether to reject the null hypothesis.
**Decision:**
- (Decision not provided; if \( p \leq 0.01 \), reject the null hypothesis; otherwise, fail to reject it.)
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