### Random variable and statistical test

Assume that in healthy American men the level of hemoglobin is normally distributed with mean ?=14 and standard deviation ?=1.1. a. What is the probability that a healthy man chosen at random will have a hemoglobin of (i) exactly 14, (ii) between 14 and 15, or (iii) over 16. b. A laboratory wants to check the accuracy of its h