How often do Facebook users post? A study by the Pew Research Center (data extracted from bit.ly/1axbobZ) revealed the following results

At the 0.01 level of significance, is there evidence of a significant relationship between frequency of posting on Facebook and age?

AGE GROUP FREQUENCY 18-22 23-35 36-49 50-65 65 Total Several times a day About once a day 20 22 54 28 37 14 4 84 3-5 days per week 32 46 31 2 118 1-2 days per week 32 69 35 7 7 160 Every few weeks 6 169 16 59 56 6 18 210 15 42 66 23 152 156 314 234 185 58 947 22 66 47 28 Less often Never Total