Statistics for Business: Decision Making and Analysis, 3rd Edition

Think About It

1. 27. H₀: μ ≤ 10 mm vs H_a: μ > 10.

2. 29. Type II error

3. 31.

   1. ¼.

   2. 9/16.

4. 33.

   1. 1/2¹² ≈ 0.00024

   2. Type I error, false positive

   3. 1 − 0.95¹² ≈ 0.46

   4. Type II error, false negative

5. 35. The sample size was too large; a smaller sample would have shown statistical significance.

6. 37.

   1. H₀: μ ≤ 200.

   2. More than 249.

   3. About 5/6.