Please see below. I only have ONE ATTEMPT at this. In July 2004, Gallup Poll asked 1005 US adults if they actively try to avoid carbohydrates in their diet. That number increased to 27% from 20% in a...

Please see below. I only have ONE ATTEMPT at this.

In July 2004, Gallup Poll asked 1005 US adults if they actively try to avoid carbohydrates in their diet. That number increased to 27% from 20% in a similar 2002 poll. Has the proportion changed? Which test should you use?