Compare two different companies 3 compare one company v5 ACME error before and after Brand X error before and after Hypothesized mean maintenance maintenance ACME ACME Brand X Brand X Altimeter Altimeter Altimeter error Altimeter error error before error after before after Altimeter Altimeter Altimeter Altimeter Altimeter Altimeter adjustment- adjustment- adjustment- adjustment- Brand A Brand B Brand C Brand D Brand E Brand F calibration calibration calibration calibration 42 38 16 47 42 39 41 9 14 D 0 38 32 35 6 4 7 11 B 0 29 4 18 12 6 32 33 3 4 26 31 22 38 25 33 30 36 28 16 12 42 25 26 9 29 2E! 21 22 3 32 32 45 32 25 25 42 38 4 19 32 5 29 10 10 9 44 7 40 45 32 19 7 17 4 29 5 14 34 31 9 13 23 31 37 27 23 30 11 34 39 20 27 38 36 26 15 48 42 3 l 25 6 15 14 33 45 29 2 36 43 43 34 19 14 14 ll 10 22 8 49 18 12 26 l l 1 33 10 4 2O 49 23 29 9 20 26 36 32 25 42 32 43 43 46 47 17 3 43 19 46 3 23 36 44 5 1 25 19 10 12 10 32 mmwwmwmmwmmuhmmmmhm * Note - Error (distance from zero) achieved by converting data to absolute values. Special thanks to John Barstow (ERAU-WW Adjunct Faculty] for his contribution to this Exam