sample subjects medium lead levels in their study done with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population sta are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. OA. Ho: H₁ H₂ H₁: Hy > H₂ C OC. Ho: H₁ H₂ H₁: Hy > H₂ OB. Ho: H₁ H₂ H₁ H₁ H₂ OD. Hoi Hy #2 H₁: Hy > H₂
sample subjects medium lead levels in their study done with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population sta are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. OA. Ho: H₁ H₂ H₁: Hy > H₂ C OC. Ho: H₁ H₂ H₁: Hy > H₂ OB. Ho: H₁ H₂ H₁ H₁ H₂ OD. Hoi Hy #2 H₁: Hy > H₂
MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Transcribed Image Text:**Title:** Hypothesis Testing of IQ Scores Based on Lead Levels
**Introduction:**
This section presents IQ scores for two random samples: subjects with medium lead levels in their blood and subjects with high lead levels. The objective is to test whether the mean IQ for subjects with medium lead levels is higher than those with high lead levels, using a 0.01 significance level.
**Data Description:**
The samples are independent simple random samples, selected from normally distributed populations, without the assumption that population standard deviations are equal.
**Instructions:**
Click the icon to view the data table of IQ scores.
**Hypothesis Testing:**
**Question:**
Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels are higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses?
Assumptions:
- **Population 1** consists of subjects with medium lead levels.
- **Population 2** consists of subjects with high lead levels.
**Choices for Hypotheses:**
A.
- Null Hypothesis (\(H_0\)): \(\mu_1 \leq \mu_2\)
- Alternative Hypothesis (\(H_1\)): \(\mu_1 > \mu_2\)
B.
- Null Hypothesis (\(H_0\)): \(\mu_1 = \mu_2\)
- Alternative Hypothesis (\(H_1\)): \(\mu_1 \neq \mu_2\)
C.
- Null Hypothesis (\(H_0\)): \(\mu_1 = \mu_2\)
- Alternative Hypothesis (\(H_1\)): \(\mu_1 > \mu_2\)
D.
- Null Hypothesis (\(H_0\)): \(\mu_1 \neq \mu_2\)
- Alternative Hypothesis (\(H_1\)): \(\mu_1 > \mu_2\)
**Conclusion:**
Select the correct hypothesis that reflects the claim. Use the statistical test to determine whether there is sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis using a 0.01 significance level.
Expert Solution

Step 1
Solution:
Population 1 :Subjects with medium lead levels
Population2: Subjects with high lead levels
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