Given Exercise gave the information that head circumferences of adult males have a bell-shaped distribution with mean 56 cm and standard deviation 2 cm.
a. What is the head circumference such that only 2.5% of adult males have a smaller head circumference?
b. What is the head circumference such that only 2.5% of adult males have a larger head circumference?
c. What is the head circumference such that only 16% of adult males have a larger head circumference?
Exercise
Head circumferences of adult males have a bell-shaped distribution with a mean of 56 cm and a standard deviation of 2 cm.
a. Explain whether or not it would be unusual for an adult male to have a 52-cm head circumference.
b. Explain whether or not it would be unusual for an adult male to have a 62-cm head circumference.