Questions:
1. A scientist testifying before a congressional hearing on the effects of estrogenic pesticides told every man in the room that he "is half the man his grandfather was." The scientist was dramatizing a report on worldwide studies involving 14,847 men, over many different years and in many countries, that showed male
semen concentrations have dropped approximately 50% over the past 50 years.
Identify the population, statistical population, sample and statistical sample.
Q2. A statistics professor wants to find out the average GPA (grade point average) for all students at UIUC. He uses all students enrolled in his statistics class as a sample and collects information on their GPAs to find the average GPA.
Identify the population, statistical population, sample and statistical sample.