When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published an article with this headline: "Majority of Americans Disapprove of Kavanaugh." Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use the normal distribution as an approximation to the binomial distribution. tcrunch Let p denote the population proportion of all Americans who disapproved of Kavanaugh. Identify the null and alternative hypotheses. Ho: P H₁: p < (Type integers or decimals. Do not round.) Identify the test statistic. Z= (Round to two decimal places as needed.) Identify the P-value. GELEID P-value= (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Tech help Next

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## Example of Hypothesis Testing

### Context

When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published an article with this headline: "Majority of Americans Disapprove of Kavanaugh." Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use the normal distribution as an approximation to the binomial distribution.

### Hypotheses

Let \( p \) denote the population proportion of all Americans who disapproved of Kavanaugh. Identify the null and alternative hypotheses.

- \( H_0 \): \( p = 0.5 \)
- \( H_1 \): \( p > 0.5 \)

### Calculations

- **Test Statistic**: \( z \)  
   (Round to two decimal places as needed)

- **P-value**:  
   (Round to three decimal places as needed)

### Conclusion

State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim.
Transcribed Image Text:## Example of Hypothesis Testing ### Context When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published an article with this headline: "Majority of Americans Disapprove of Kavanaugh." Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use the normal distribution as an approximation to the binomial distribution. ### Hypotheses Let \( p \) denote the population proportion of all Americans who disapproved of Kavanaugh. Identify the null and alternative hypotheses. - \( H_0 \): \( p = 0.5 \) - \( H_1 \): \( p > 0.5 \) ### Calculations - **Test Statistic**: \( z \) (Round to two decimal places as needed) - **P-value**: (Round to three decimal places as needed) ### Conclusion State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim.
**Hypothesis Testing Exercise**

**Context:**
When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1,127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published an article with this headline: “Majority of Americans Disapprove of Kavanaugh.” Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use the normal distribution as an approximation to the binomial distribution.

**Task:**

1. **State the Hypotheses:**
   - Null Hypothesis (\( H_0 \)): \( p = 0.5 \)
   - Alternative Hypothesis (\( H_1 \)): \( p > 0.5 \)

2. **Identify the Test Statistic:**
   - \( z = \) (Round to two decimal places as needed.)

3. **Identify the P-value:**
   - P-value = (Round to three decimal places as needed.)

4. **Conclusion:**
   - State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim.
   - [ ] Reject or [ ] Fail to reject the null hypothesis. There is [ ] sufficient or [ ] not sufficient evidence to [ ] support or [ ] refute the claim that a majority of Americans disapproved of Kavanaugh.

**Instructions:**
Fill in the blanks with your calculations. Use the provided significance level and test statistic to complete the hypothesis testing process.
Transcribed Image Text:**Hypothesis Testing Exercise** **Context:** When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1,127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published an article with this headline: “Majority of Americans Disapprove of Kavanaugh.” Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use the normal distribution as an approximation to the binomial distribution. **Task:** 1. **State the Hypotheses:** - Null Hypothesis (\( H_0 \)): \( p = 0.5 \) - Alternative Hypothesis (\( H_1 \)): \( p > 0.5 \) 2. **Identify the Test Statistic:** - \( z = \) (Round to two decimal places as needed.) 3. **Identify the P-value:** - P-value = (Round to three decimal places as needed.) 4. **Conclusion:** - State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. - [ ] Reject or [ ] Fail to reject the null hypothesis. There is [ ] sufficient or [ ] not sufficient evidence to [ ] support or [ ] refute the claim that a majority of Americans disapproved of Kavanaugh. **Instructions:** Fill in the blanks with your calculations. Use the provided significance level and test statistic to complete the hypothesis testing process.
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