COMMERCE 2QA3 Study Guide - Final Guide: Multiple Choice, Standard Deviation, Test Statistic
Document Summary
A lot of problem solving on multiple choice. This will take you most of the time so come prepared! Range, variance, no calculation question but you must know how to do this. Tree diagram any problem can be solved with this. Estimation -> mean -> o< given (z value) Read the question carefully, is standard deviation given or not (z or t value?) Null hypothesis: u > 200mg (null hypothesis always = sign) Hypothesis ha: u < -> lower tail test ha: u> u0 upper tail test ha: u does not = u0. Step 4: test statistic and also you see the alternate hyp. (upper tail test) Alpha value: o< = 0. 05 and also what kind of test it is (ha). F-table not included but that doesn"t mean you don"t have to know it; part will be copied in the question that you need. More than one population 2 populations - u1 & u2.