Exercise:
A relation between age (20-39 year-old, 40-59 year-old, or 60 year-old and more) and season (spring, summer, fall, or winter) in a certain disease onset was investigated. Analyze whether there is a significant relation between disease onset age and season.
Comparative Verification Test
Chi-square test: StaFinale, 0.02904; SPSS, 0.029; EZR, 0.02904. Fisher’s exact test: EZR, 0.00303.
G test: StaFinale, 0.02965. Formula in StatFinale: P-value= CHIDIST(chi-square value,DF)
Likelihood ratio test: SPSS, 0.026. Formula in StatFinale: P-value= CHIDIST(G-value,DF)
Try it for yourself.
Reports of SPSS & EZR
About G test: In recent years, many statisticians have concluded that the chi-square procedure is preferable to G (JH Zar).
SPSS and EZR do not have the tabular format for data entry that Statfinale uses.
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