Birth days During a 2-month period, 72 babies were born at the Tompkins Community Hospital in upstate New York. The table shows how many babies were born on each day of the week.

1. If births are uniformly distributed across all days of the week, how many would you expect on each day?

2. Test the hypothesis that babies are equally likely to be born on any of the days of the week.

3. Given the results of part b, do you think that the 7 births on Monday and 17 births on Tuesday indicate that women might be less likely to give birth on Monday, or more likely to give birth on Tuesday?

4. Can you think of any reasons why births may not occur completely at random?

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Day Births Mon. 7 Tues. 17 Wed. 8 Thurs. 12 9 Fri. Sat. 10 Sun. 9