Performing a Chi-Square Goodness-of-Fit Test In Exercises 7−16, (a) identify the claim and state H0 and Ha, (h) find the critical value and identify the rejection region, (c) find the chi-square test statistic, (d) decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim.
12. Homicides by Month A researcher claims that the number of homicide crimes in California by month is uniformly distributed. To test this claim, you randomly select 1800 homicides from a recent year and record the month when each happened. The table shows the results. At α = 0.10, test the researcher’s claim. (Adapted from California Department of Justice)
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Elementary Statistics: Picturing the World (7th Edition)
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