The following table, based on government data, shows the frequency distribution of births by day of the week for all registered births in the United States in a recent year. Test the null hypothesis, at a = .01, that all seven days of the week are equally likely for childbirth.

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Number of Births (in 10,000) by Day of the Week, United States Number of births 62.9 69.3 67.8 67.7 643 43.2 37.9 ues Wed Thurs All Days 413.1