Question

A sociologist randomly selects 377 females 15 to 19 years old and asks each to disclose her family structure at age 14 and whether she has had sexual intercourse.

Had sexual intercourse	Both Biological or Adoptive Parents	Single Parent	Parent and Stepparent	Nonparental Guardian
Yes	43	60	63	33
No	35	42	84	17

Determine the​ P-value.

​P-value = _______

​(Round to three decimal places as​ needed.)

Answer 1

Chi square formula

=10.98

Expected frequencies = (Row total* Column Total) /Grand Total.

Degree of freedom =(Row-1)(Column-1) =3

P value is = 0.012..........................by using Excel command CHIDIST(10.98,3)