Question 18: see picture below Question 19: see picture below Question 20: what is the number of degrees of freedom for this test? Df=Question 21:,what is the P value of this test ( identify the appropriate range for its value): -Greater than 50%-30-50%-10-30%-5-10%-1-5%-Less than 1%

QUESTION 18 (Questions 18-21 use the following information.) A graduate student in health informatics is interested in whether babies delivered at term without induction tend to be born on certain days of the week more often than on other days. She identifies and collects the following information concerning a random sample of 350 recent births in the Boston teaching hospitals (with appropriate HIPAA compliance): Weekday Births Monday 59 Tuesday 44 Wednesday 41 Thursday 42 Friday 65 Saturday 55 Sunday 44 What is the null hypothesis for this x 2 -test? All weekdays are equally likely O Not all weekdays are equally likely O Babies have preferences QUESTION 19 What is the value of the test statistic, x 2 ? X 2 =