1. Compute the percentage of the normal curve located at or above each of the following z values.
a. 1.50
b. -1.50
c. -0.86
d. 0.00
e. 1.46
f. -0.50
For each of the value ( a thru f) in the above problem to calculate the percentage of the normal curve located at or below each of the z values.
2. The mean cholesterol level of a large population of mena in the 50 to 60 year age group is 190 mg per 100 ml of blood. The standard deviation of the population is 25 mg per 100 ml. Assume that the measurements are distributed approximately normally.
a. What % of the population has cholesterol 250 mg or more?
b. What % of the population has cholesterol levels 190 mg or less?
c. What % of the population has cholesterol levels between 140 mg or less?