Listed below are the nicotine amounts (in mg per cigarette) for samples of filtered and nonfiltered cigarettes (from Data Set 4 in Appendix B). Do filters appear to be effective in reducing the amount of nicotine?

Find the mean and median for each of the two samples, then compare the two sets of results.

Transcribed Image Text:

Nonfiltered: 1.1 1.7 1.4 1.2 1.0 1.4 1.1 1.2 1.1 1.7 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.8 1.6 1.5 1.3 1.3 1.1 1.1 1.1 Filtered: 0.4 1.2 0.8 1.1 1.1 0.8 0.8 0.8 1.0 0.8 1.0 1.1 0.8 1.0 0.2 1.1 0.8 1.0 1.0 0.9 1.1 1.1 1.3 0.6 1.1 Data Set 4: Cigarette Tar, Nicotine, and Carbon Monoxide All measurements are in milligrams per cigarette. co denotes carbon monoxide. The king size ciga- rettes are nonfiltered, nonmenthol, and non-light. The menthol cigarettes are 100 mm long, filtered, and non-light. The cigarettes in the third group are 100 mm long, filtered, nonmenthol, and non- light. Data are from the Federal Trade Commission. STATDISK: Data set name is Cigaret. Minitab: Worksheet name is CIGARET.MTW. Excel: TI-83/84 Plus: Text file names: Workbook name is CIGARET.XLS. App name is CIGARET and the file names are the same as for text files. KGTAR, KGNIC, KGCO, MNTAR, MNNIC, MNCO, FLTAR, FLNIC, FLCO (where KG denotes the king size cigarettes, MN denotes the menthol cigarettes, and FL denotes the filtered cigarettes that are not menthol types). King Size Menthol Filtered 100 mm Non-menthol Brand Tar Nicotine Co Brand Tar Nicotine Co Brand Tar Nicotine co Barclay Alpine Austin Basic Belair 20 27 0.4 1.0 Austin 1.1 16 16 1.1 0.8 1.0 0.9 15 Basic Bristol Cardinal 1.7 16 13 16 17 Basic 16 19 1.7 16 19 Camel 17 1.2 17 Highway Jacks 1.1 16 13 0.8 18 Cavalier Chesterfield Best Value 0.8 0.8 1.1 16 14 17 13 0.8 18 1.4 17 Cavalier 13 17 1.0 Kent Lark Marlboro 14 13 0.8 0.8 0.9 0.8 0.8 Cimarron 1.1 16 Doral 12 15 15 1.1 17 Class A 1.4 15 Focus 14 17 15 1.1 15 1.0 1.2 16 GPC Maverick Merit Doral 14 15 15 1.1 15 12 18 GPC Highway Jacks Kool 0.8 0.8 14 13 17 Highway Jacks Marker 1.1 16 13 17 Monaco 13 16 Monarch 0.8 0.8 1.1 16 1.2 15 13 17 Legend Marker Maverick Merit 1.1 16 13 0.8 17 18 Mustang Newport Now 13 0.8 1.0 0.2 16 Monaco Monarch Old Gold 1.1 16 13 17 15 1.1 16 18 1.3 18 Old Gold Pall Mall Pilot 1.8 0.7 18 14 16 16 11 15 1.1 Pall Mall 1.6 19 Newport Now Pilot 1.4 18 15 1.0 15 Pilot 1.1 0.2 13 0.8 18 1.2 0.8 1.0 0.8 0.8 Players Prime 1.0 0.9 Prime 14 13 17 14 15 Pyramid Raleigh Extra Sebring 1.5 18 Players 14 14 15 17 Raleigh Tareyton True Viceroy Winston 1.3 15 Prime 14 15 16 1.1 15 16 Pyramid Salem 1.1 15 15 1.1 15 16 Summit Sundance Worth 1.3 14 1.2 0.6 0.7 16 0.6 1.1 16 True 6. 17 1.3 16 1.1 16 Vantage 8. 15 1.1 14 28183888888821858KK2888