SELECTING A HYPOTHESIS TEST: a decision chart

SELECTING A HYPOTHESIS TEST: a decision chart
Based on Robert S. Witte (1993) Statistics 4th Ed. New York: Harcourt Brace

RETURN
edited 8/19/11

DATA TYPE	Condition 1	yes/no	Condition 2 (if needed)	yes/no	Testing Process		Condition3: Are assumptions violated or original observations ranks?	yes/no	Corrections: Mann-Whitney, etc. as appropriate
NON-NUMERICAL	Observations cross-classified?	Yes			Two-Way Chi²	Finished
		No			One-Way Chi²	Finished
NUMERICAL
1 Group					t for population mean	Finished
2 Groups	Observations paired?	Yes	Evaluated for Relationship?	Yes	t for pop corr coefficient	Finished
				No	t for 2 pop means		Condition 3	yes	Corrections, then Finished
								no	Finished
		No			t for 2 population means		Condition 3	yes	Corrections, then Finished
								no	Finished
More Groups	two factor classified?	Yes			Two-Way F	Finished
		No			One-Way F		Condition 3	yes	Corrections, then Finished
								no	Finished