46 65 56 44 44 50 44 54 45 51 54 50 51 58 48 45 50 46 50 49 19 degrees of freedom chi-square statistic = 11.08 57 43 49 58 59 57 42 42 52 51 54 49 50 51 50 44 47 57 50 38 19 degrees of freedom chi-square statistic = 13.64 46 55 47 49 54 56 48 51 41 45 48 65 54 44 60 38 48 47 59 45 19 degrees of freedom chi-square statistic = 17.16 49 71 56 42 48 47 49 36 47 57 48 54 46 50 50 43 45 59 59 44 19 degrees of freedom chi-square statistic = 22.36 38 46 57 44 44 50 45 53 62 63 53 49 67 41 52 46 51 46 47 46 19 degrees of freedom chi-square statistic = 21.40