The table below shows a breakdown of women between the ages of 20 to 64 who have had a Pap smear--it shows the number in each age group cross tabulated with the time of their last Pap smear. Test at the .05 level of significance whether there is an association between age and the time since the last Pap smear. Show the manual calculation of the chi-square statistic and describe the relationship between age and frequency.