12.2.7-T Question Help
me
A sociologist randomly selects 374 females 15 to 19 years old and asks each to disclose her family structure at age 14 and whether she has had sexual intercourse.
Use the results in the accompanying table to complete parts (a) through (f) below.
Click the icon to view the data table of family structure and sexual activity.
Tests
0
ctivity
(a) Compute the expected values of each cell under the assumption of independence.
Had sexual Both Biological or Adoptive
Single Parent
intercourse
Parents
42
62
Yes
34
88
No
(Round to two decimal places as needed.)
Parent and
Stepparent
30
Non-parental Guardian
60
18
40