HW8_skeleton

9.1

• 1. point estimate
• 2. level of confidence
• 3. false, it means 95% will be in the paramter if the sample is big
• 4. critical value
• 5. increase
• 6. increase
• 7. 1.645
• 8. 2.576
• 9. 2.326
• 10. 0.842
• 11. 270
• 12. 140
• 15. lower bound is 0.146, upper bound is 0.254
• 16. upper is 0.480, lower is -0.32
• 21. 1. flawed, it doesn’t provide an interval for the population proportion

2. flawed, has a varying level of confidence c correct, interval is provided
3. flawed, interval does not set standard for other intervals

• 1. 0.181

  2. they are satisfied

  3. lower bound=0.168, upper bound=0.194

  4. 90% confident

• 1. 0.430

  2. they are satisfied