1.Why would you use a small sample to draw inference about a large population?
Test of a single proportion:
2. What is the difference between a sample parameter (X-bar and s) and a proportion parameter (p)?
Test of two populations, large sample size (z-statistics)
3. When would you use two population test with a large sample size in your education?
Test of two populations, small sample size (t-statistics)
4. When would you use two population test with a small sample size in your education?© BrainMass Inc. brainmass.com June 3, 2020, 6:56 pm ad1c9bdddf
Please see the attached file.
Test of single population, small sample size (t-statistics)
1. Why would you use a small sample to draw inference about a large population?
When the assumption required for a large-sample test of hypothesis about m is violated, we need a hypothesis-testing procedure that is appropriate for use with small samples, because if we use methods of the large-sample test there will be following errors:
(i) the small sample will ...
Solution attaches a Word file which explains why and how to use sample sizes as accurate representations of populations, and the concept of z- and t-test statistics within this.