The average rancher has a mean 2500 head of cattle. After a vegetarian riot in Montana, the hope is ranchers will raise fewer cows. In a selection of 26 ranches it is found they have a mean 2458 head...

The average rancher has a mean 2500 head of cattle. After a vegetarian riot in Montana, the hope is ranchers will raise fewer cows. In a selection of 26 ranches it is found they have a mean 2458 head of cattle with a standard deviation of 88. At α = .05, is there enough evidence to show ranchers are raising fewer cows?