For each of Exercises 57–60, do the following:
60. Latino Tobacco Consumption. The Bureau of Labor Statistics reported that the mean amount spent by all American citizens on tobacco products and smoking supplies is $308; the mean for American Latinos is $177. Assume that , the standard deviation for American Latinos, equals $150. Assume that the data on American Latinos represents a sample of size 36. Let the confidence level be 90%.