Hypothesis Test Steps

by S. Gramlich

(updated 4/14/09)

1) Identify Hypotheses:

Ho: Fits claimed distribution

H1: Does NOT fit claimed distribution

2) Write given (alpha, contigency table, n)

3) find critical value (cv) from Table A-4

4) calculate test statistic (ts)

5) Draw chi-square curve, shade critical region, & label cv, ts.

6) Traditional Method Decision Rule (DR)

if ts outside critical region, fail to reject null.

if ts inside critical region, reject null.

7) find P-value

8) P-Value Method DR

if p-val > alpha, fail to reject null.

if p-val <= alpha, reject null.

9) State conclusion in English words relative to original claim.