Based upon survey of 1,000 adults by Greenfield Online and resported in May 2009 USA Today Snapshot, adults 24 years of age and under spend weekly average of $35 on fast food. If 200 of adults surveyed were in age catetory of 24 and under as well as they provided a standard deviation of $14.50, develop a 95% confidence interval for weekly average expenditure on fast food for adults 24 years of age and under. Suppose fast food weekly expenditures are normally distributed.