Question: A student organization is interested to find the percentage of the students that

smoke, in a local university. A random sample of size 100 students (N=12000) were

selected. The respondents were asked whether they smoke? 30 responded yes and

the rest said no.

a. Specify the population.

b. What is the parameter of this population?

c. What is the relevant sample statistic in this problem?

d. What is the best estimate of the percentage of students that smoke?

e. How can the student organization improve the answer to part “d”?