A researcher wants to determine the average income of the people of Omaha, Nebra
ID: 2757400 • Letter: A
Question
A researcher wants to determine the average income of the people of Omaha, Nebraska. He found that there are 385,600 employed people in the state. A group of 1,200 people are selected randomly to ascertain the income of each of those individuals. He finds that the average income of those 1,000 numbers to be $42,827. Identify the parameter in this context.
385,600 + 1,200 constitute the population
1,200 people selected for the study
385,600 employed people in Omaha
Average income of $42,827
385,600 - 1,200 constitute the population
a.385,600 + 1,200 constitute the population
b.1,200 people selected for the study
c.385,600 employed people in Omaha
d.Average income of $42,827
e.385,600 - 1,200 constitute the population
Explanation / Answer
Population is entire universe for the purpose of the study. And sample is the people selected from the population. Therefore, here, population is 385,600 employed people and sample is 1200 people.
Therefore, option C is correct.
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