PSY 520

PSY 520 Topic 7 ExerciseChapter 19 and 20-Latest Update Last document update:   ago

19.9 a.) Using the .01 level of significance, test the null hypothesis that in the underlying population, crimes are equally likely to be committed on any day of the week. Response: H0=Psun=Pmon=Ptues=Pwed=Pthurs=Pfri=Psat=17 H1 :H0 is false Decision Rule: Reject H0 at the 0.01 level of significance is x2≥16.81 Calculations: total sample¿ ¿ f e=(expected proportion)¿ Frequen cy Mon Tues Wed Thurs Fri Sat Sun Total f o 17 21 22 18 23 24 15 140 f e 20 20 20 20 20 20 20 140 Nul...