Details of this Paper

We expect two proportions to be about 0.20 and 0.3...

Description

Solution


Question

We expect two proportions to be about 0.20 and 0.30, and we want an 80% chance of detecting a difference between them using a two-sided 0.05 level test. a. Assuming equal sample sizes, how large should they be? b. How does the sample size change if we want a 90% power? c. How does the sample size change if we use a two-sided 0.01 level test (still keeping 80% power)? d. How does the sample size change if we want to test a difference between 0.30 and 0.40 (still keeping 80% power, two-sided 0.05 level test)?

 

Paper#13523 | Written in 18-Jul-2015

Price : $25
SiteLock