David E. Brown is an expert in wildlife conservation. In his book The Wolf in the Southwest: The Making of an Endangered Species (University of Arizona Press), he records the following weights of adult grey wolves from two regions in Old Mexico.
Question B: (b) Let M, be the mean weight of the population of all grey wolves in the Chihuahua region. Let M, be the mean weight of the population of all grey wolves in the Durango region. Find a 90% confidence interval for u1, - u2. (Round your answers to two decimal places.)
Lower limit:
Upper limit:
