HoiH H₁: H (Type integers or decimals. Do not round.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
State the null and alternative hypothesis.
H0: ≠, >, =, or < ____________ (Type an integers or decimals. Do not round)
H1: ≠, >, ≤, <, ≥, or = __________ (Type an integers or decimals. Do not round)

Transcribed Image Text:**Educational Content:**
**Hypothesis Testing on Cotinine Levels in Smokers vs. Nonsmokers**
In this study, the claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL, which is found in nonsmokers. Cotinine serves as an important biomarker to measure exposure to nicotine.
- **Sample Size:** The number of participants in the study is \( n = 778 \).
- **Test Statistic:** The calculated t-value for the hypothesis test is \( t = 58.258 \).
To reach a conclusion, use statistical technology to find the P-value, which will allow for determining if the observed result is statistically significant at the chosen significance level. The significance level (alpha) for this test is \( 0.10 \).
**Task:**
State the null and alternative hypotheses for the study:
- **Null Hypothesis (\( H_0 \)):**
- Representation: \(\mu \)
- Value to compare: 2.84
- Hypothesis: The mean cotinine level for smokers is equal to 2.84 ng/mL.
- **Alternative Hypothesis (\( H_1 \)):**
- Representation: \(\mu \)
- Value to compare: 2.84
- Hypothesis: The mean cotinine level for smokers is greater than 2.84 ng/mL.
*(Note: Input either integers or decimals. Avoid rounding values.)*

Transcribed Image Text:### Statistical Analysis Exercise:
1. **Test Statistic**:
- The test statistic is represented as a blank input field. (Round to two decimal places as needed.)
2. **P-Value**:
- The P-value is represented as a blank input field. (Round to three decimal places as needed.)
3. **Interpretation of P-Value**:
- Based on the P-value, there is a dropdown menu providing options for the sufficiency of evidence.
- This is followed by another dropdown menu to decide whether to reject or fail to reject the claim.
- The claim in question is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for nonsmokers.
This exercise requires filling in statistical results to make an inference about cotinine levels in smokers compared to non-smokers.
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