Compute the z-statistic you would use if you wanted to examine whether the mean age of marriage within a local cult is significantly different from the mean age of marriage in the general population. the data from your cult sample are presented below. you also know that the mean age of marriage in the general population is 29.23, with a population standard deviation of 4.13. compute z. your sample: 13, 15, 16, 18, 51, 12, 65, 25