Question

Suppose that 70% of all Americans agree that a candidate is not trustworthy. A survey finds the 116 out of 200 agree that a candidate is not trustworthy.

How likely is the result above to happen, if the sample is representative of the population?

Choose the best answer.

It is very likely

It is somewhat likely

It is unlikely

It is very unlikely

1. An Article describes results of a survey on the topic of college students in the US injuring themselves intentionally. Researchers invited 8300 undergraduates and graduates at Cornell and Princeton to participate in the survey. A total of 2875 students responded with 17% of them saying they had purposefully injured themselves. Indentify each of the following:

   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.	the variable
   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.	population
   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.	sample
   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.	sample size
   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.	parameter
   -       a.       b.       c.       d.       e.       f.       g.       h.       i.       j.	statistic

   a.	8300
   b.	17% of students responding they had purposely hurt themselves
   c.	Whether or not they had purposely injured themselves
   d.	all college students at Princeton and Cornell
   e.	8300 undergrads and graduate students at Princeton and Cornell
   f.	proportion of college students who purposely injure themselves
   g.	all college students who had injured themselves
   h.	college students
   i.	2875
   j.	2875 undergrads and graduate students at Princeton and Cornell

Answer 1