Mineral loss during nursing Breast feeding mothers secrete calcium into their milk Some of the calcium may come from their bones so mothers may lose bone mineral Research measured the percent change in bone mineral content BMC of the spines of 47 randomly selected mothers during three months of breast feeding The mean change in BMC wa 3 587 and the standard deviation was 2 506 Determine if the conditions for calculating a confidence interval for mean are met in each of the following settings A Random Select B Normal Select C Independent Select