Need and answer within the hour please:
A poll was taken this year asking college students if they considered themselves overweight. A similar poll was taken five years ago. Results are summarized below.
Sample Size Number Considered Themselves Overweight
Present Sample 300 150
Previous sample 275 121
- Develop a 95% confidence interval estimate for the difference between the proportions of students who considered themselves overweight in the two samples.
- Is there conclusive evidence that one of the proportions is significantly different than the other? Explain using the results of part a. Do not perform any test.