A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple random sample of 400 U.S. adults and find that 208 of them say the IRS is not aggressive enough. Test at .05 significance. Round to the fourth Ho: P HA: P OF > How many successes were there? Test Statistic: P-value: .450 0.45✔ OF Did something significant happen? Significance Happened Select the Decision Rule: Reject the Null There is enough evidence to conclude that more than 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple random sample of 400 U.S. adults and find that 208 of them say the IRS is not aggressive enough. Test at 0.05 significance.

**Null Hypothesis (\(H_0\)):** \(p = 0.45\)

**Alternative Hypothesis (\(H_A\)):** \(p > 0.45\)

- How many successes were there? [No value provided]
- Test Statistic: [No value provided]
- P-value: [No value provided]

**Did something significant happen?**

- Significance Happened

**Select the Decision Rule:**

- Reject the Null

**Conclusion:**

- There **is** enough evidence to conclude that more than 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes.
Transcribed Image Text:A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes. You believe the true percentage is more than 45%. To test this, you take a simple random sample of 400 U.S. adults and find that 208 of them say the IRS is not aggressive enough. Test at 0.05 significance. **Null Hypothesis (\(H_0\)):** \(p = 0.45\) **Alternative Hypothesis (\(H_A\)):** \(p > 0.45\) - How many successes were there? [No value provided] - Test Statistic: [No value provided] - P-value: [No value provided] **Did something significant happen?** - Significance Happened **Select the Decision Rule:** - Reject the Null **Conclusion:** - There **is** enough evidence to conclude that more than 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their taxes.
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