A study determined that only 28% of online youth consider themselves to be very skilled or expert at using the Internet. More
than 1200 online interviews, of Canadian youths aged 12 to 17, were
completed. Results are considered accurate to within + 2.8%, 19
times out of 20.
2. a.
Determine the confidence level for the study:
b. State the margin of error:
c. Determine the confidence interval for the study:
d. Suppose that there are 8 500 youth, between 12 and 17 years old, in a particular city.
State the range of these youth who consider themselves expert at using the Internet.