Question 7.95

95. Blood Lead Contamination. Refer to Exercise 91.

  1. Find the sample mean blood lead level greater than 95% of all sample mean blood lead levels.
  2. Find the value of smaller than 95% of all sample mean blood lead levels.
  3. What are the two symmetric values of that contain the middle 90% of sample means?

7.1.95

(a) 37.2575 micrograms (b) 25.5425 micrograms (c) 25.5425 micrograms and 37.2575 micrograms