What hypothesis testing model (my “models” handout) would be used under each of the following conditions. Use the “model number” from my handout if you wish. By line the information given in each cell is: Level of measurement, number of groups, sample size to be taken, parameter of interest and any qualifications.
Conditions
Ratio data
One group
Large sample
Population mean
Don’t know sigma
Ratio data
Two groups
Large sample
Population variances
Populations are normally distributed
Nominal data
Two factors of classification
Large sample
Test for independence
Expected frequencies condition met
Ratio data
One group
Small sample
Population mean
Don’t know sigma
Population is normally distributed.
Ratio data
One group
Small sample
Population mean
Don’t know sigma
Population is NOT normally distributed