The per capita consumption of chicken has risen from 28 pounds in 1960 to 90.6 pounds in 2007, according to the U.S. Department of Agriculture. That constitutes an average increase of approximately 1.33 pounds per capita per year. To determine if this trend has continued, in 2008 a random sample of 200 individuals was selected to determine the amount of chicken they consumed in 2008. A file entitled Chickwt contains the data.

a. Calculate the mean and standard deviation of the amount of chicken consumed by the individuals in the sample.

b. Calculate a 99% confidence interval for the 2008 per capita consumption of chicken in the United States.

c. Based on your calculation in part

b, determine if the specified trend has continued.