4. [Test for Independence) A research conducted by the Criminology Department of University of Pangasinan involves the crime situations of the four cities of Pangasinan province. Based on their interviews among selected citizens in these cities on their levels of concern, crime was classified as a major concern, a minor concern, or of no concern for each individual interviewed. The results are shown in the table below. Use 2 decimal places in your computations. Concern Alaminos City San Carlos City Urdaneta City Dagupan City 40 35 45 40 10 15 Major Minor No Concern Ha: If the level of concern regarding crime is independent of each of the cities in Pangasinan province, state the null and alternative hypotheses. Ho: Find the expected frequencies for the 12 cells below. Show calculation for each cell. Concern Alaminos City Dagupan City San Carlos City Major Minor No Concern Column Total Fill up the cells in the table below. City O Alaminos 25 65 15 Dagupan San Carlos Urdaneta Calculate the degrees of freedom, df. What is your decision? Use a= 0.05. E 40 40 20 Urdaneta City Row Total (0-E) (0-E)//E

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