7.33 Corn seed prices.

The U.S. Department of Agriculture (USDA) uses sample surveys to obtain important economic estimates. One USDA pilot study estimated the amount a farmer will pay per planted acre for corn seed from a sample of 20 farms. The mean price was reported as $97.59 with a standard error of $13.49. Give a 95% confidence interval for the amount a farmer will pay per planted acres for corn seed.¹⁴