cinfidence interval- stats

FratBro23
Category:
Statistics
Price: $5 USD

Question description

1.  Confidence Interval – proportion -A study by the University of Michigan found that one in five 13 and 14 years olds is a sometime smoker.  To see how the smoking rate of the students at a large school district compared to the national rate, the superintendent surveyed two hundred 13 and 14 year old students and found that 23% said they were sometimes smokers.  Find the 95% confidence interval of the true proportion and compare this with the University of Michigan’s study.

1.  What is p? ______

2.  Find p and q

3.  Find critical value, α.

4.  Find margin of error:

5.  Find the confidence interval: CI = P

Write the conclusion.


Studypool has helped 1,244,100 students
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1820 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors