- Finally, you have been asked to compare the mean ages of thesupporters of the candidate in various sectors of the country.Random samples of supporters of the candidate are selected fromfive geographic areas. The data that has been collected is shown inappendix four below. At the 5% level of significance, are there anydifferences in the mean ages of the supporters of the candidatebased on their residencies? If you do find any differences in themean ages, do the work necessary to find where those differenceslie. As a further part of your work, perform the necessary test toascertain whether the necessary quality of homogeneity of variancesexists.
Appendix Four:
                                                                    Region
           Supporter     North     East        South             West             Midwest
      1             23           36            45               22                    40
      2             66           50            48                51                   75
      3             43           40            29               52                    65
      4             70           28            30               31                    30
      5             60           26            38               35                    67
      6             49           34            87               65                    78
      7             54           59           20               19                   67
      8            64          51            26               29                    76
      9             54           50            39               43                    44
     10            60           42            38               54                    61
     11            70           58            50               48                    70
     12            49           48            29               18                    90
     13            38           37            21               34                    78
     14            40           31            29               30                    69
     15            49           52            40               50                    28
