Protein Intake:
Men The Dietary Reference Intake of proteins is different for men and women. For both, the distribution is approximately Normal.
For men, the middle 95% range from 54 to 58 grams per day, and for women, the middle 95% have protein intake recommendation between 44.8 and 47.4 grams per day.
a. What is the mean for the men? Explain your reasoning.
b. Find the standard deviation for the men. Explain your reasoning.