Stats Question ? [Prev. Q.] [Next Q.] [Prev. Chap.] [Next Chap.] [goto]

A sample of 1354 is taken out of a population of 2500 in order to obtain the percentage of people who prefer McDonalds over Burger King. It turns out that 872 preferred McDonalds. Find a 95% confidence interval for the percentage of people who prefer McDonalds among all 2500 people in the population. 32 +/- 2*.75% 48 +/- 2*1.6% 64 +/- 2*1.0% 64 +/- 2*1.3% 27 +/- 2*2.1%

You may use the calculator above and this area as scratch paper. To see the solution just click on the button.

Carlos Rodriguez <carlos@math.albany.edu>

This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
Last modified: Wed May 13 12:29:11 EDT 1998