A normal population has a mean of 22 and a standard deviation of 4.

a. Compute the z value associated with 26. (Round your answer to 2 decimal places.)

Z

b. What proportion of the population is between 22 and 26? (Round z-score computation to 2 decimal

places and your final answer to 4 decimal places.)

Proportion

c.

What proportion of the population is less than 19? (Round z-score computation to 2 decimal places

and your final answer to 4 decimal places.)

Proportion