A Christmas tree survey was conducted to determine there was a difference between urban rural tree users in terms of artificial tree use. The results are presented in the table below. What is the 90%...

A Christmas tree survey was conducted to determine there was a difference between urban rural tree users in terms of artificial tree use.  The results are presented in the table below. What is the 90% CI for the difference between the proportions (urban minus rural) of artificial tree users?

Table is attached below.

Extracted text: Total Tree Users 261 160 Group Number with Artificial Trees Urban 89 64 Rural A- t1.645 Pd-P)¸ P¿(1- p,) п п,