A research group is interested in gauging perceptions about
     A research group is interested in gauging perceptions about costs o f textbooks among college students. Specifically, they  wish to determine the percentage o f first year students in the United States that believe costs o f textbooks are  too expensive. They use an alphabetized Kst of students o f the state run universities and use technology to generate a  randomly shuffled list of the students. They then select students to contact from this list until they have succeeded in contacting 200 students. Complete parts (a) through (d) below  What is the population  200 students  The state run universities  The first year students in the United States  The costs o f textbooks 
  
  Solution
The population is the whole mass about which the the hypothesis is tested.
For example here the research group is interested in determining the percentage of first year students who believe that cost of text books are too expensive.
Hence the population is
C) The first year students in the United States

