Question

Questions 29 – 30. A sample of 16 individuals is selected from a population with μ = 75. A treatment is administered to the sample. After treatment, M = 82 and s2 = 64

29. Find the 90% confidence interval.

30. Find the 95% confidence interval.

31. What happens to the width of the interval when you increase the level of confidence (the percent confidence)?

32. Does the confidence interval always include the population mean, sample mean, or both?

Answer 1