Question

Use the data table provided to calculated the values requested below. Provide all answers to three decimal places.

Has at least 1 child Has no children Total
Supports bans 1739 3089 4828
Does not support bans 746 1142 1888
Total 2485 4231 6716
1. Conditional proportion of support for the ban among those with at least one child: ________
2. Conditional proportion of support for the ban among those with no children: __________
3. Difference in proportion of supporters for the ban between those with at least one child and those with no children (at least 1 child - no children): ___________
4. Relative risk of supporting the ban for those with at least one child compared to those with no children: _________

Answer 1

1) 0.700

2) 0.730

3) 0.030

4) 0.959

Explanation:

1) proportion of support for the ban with at least one child =

`(no of support atleast 1 child)/(Total no of atleast 1 child\\)`

=
`(1739)/(2485)`

= 0.700

2) proportion of support for the ban with no child =

=
`(no of support with no child)/(Total of no child)`

=
`(3089)/(4231)`

= 0.730

3) Difference in proportion of supporters for the ban between those with atleast one child and those with no child

= 0.700 - 0.730

= -0.03

4) Relative risk =
`(proportion with atleast on child)/(proportion with no child)`

=
`(0.700)/(0.730)` = 0.959