A problem of interest to the United States, other governments, and world councils concer...

A problem of interest to the United States, other governments, and world councils concerned with the critical shortage of food throughout the world is finding a method to estimate the total amount of grain crops that will be produced throughout the world in a particular year.

One method of predicting total crop yields is based on satellite photographs of Earth’s surface. Because a scanning device reads the total acreage of a particular type of grain with error, itis necessary to have the device read many equal-sized plots of a particular planting to calibrate the reading on the scanner with the actual acreage. Satellite photographs of one hundred 50-acre plots of wheat are read by the scanner and give a sample average and standard deviation

Find a 95% confidence interval for the mean scanner reading for the population of all 50-acre plots of wheat. Explain the meaning of this interval.