The scores on a standardized test are normally distributed with a mean of 110 and standard deviation of 20. What test score is 1.1 standard deviations below the mean?

The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a standard deviation of 2.66 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.5 inches and a standard deviation of 2.59 inches.

a) If a man is 6 feet 3 inches tall, what is his z-score (to two decimal places)?

b) If a woman is 5 feet 11 inches tall, what is her z-score (to two decimal places)?