What I understand:That I must find the test statistic (2).We have the observed frequencies but must find the expected frequencies. Given the claim that homicides are uniformly distributed, E (expected freq) = n/12 = 1200/12 = 100.What I don't understand:Given just one expected frequency, how do I calculate 2 ?The only formula for 2 that I know of or see in the text is as follows: 2 = (O-E)^2 / E

CHI-SQUARE TESTS AND THE F-DISTRIBUTION 12. Homicides by Month A researcher believes that the number of homicide crimes in California by month is uniformly distributed. To test this claim, you randomly select 1200 homicides from a recent year and record the month when each happened. The results are shown in the table. At a = 0.10, can you reject the claim that the distribution is uniform? (Adapted from California Department of Justice) Month Frequency, f Month Frequency, f January July February 103 August 109 March E September April October May November June 106 December