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 titled 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.