It is a common belief that more fatal car carashes occur on certain days of the week, such as Friday or Saturday. A sample of motor vehicle deaths in Montana is randomly selected for a recent year. The numbers of fatalities for the different days of the week are listed below. At the 0.05 significance level, test the claim that accidents occur with equal frequency on the different days.

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Mon Tues Wed Thurs Fri Day Sun Sat Number of Fatalities 31 22 20 20 29 36 22