The Australian Journal of Zoology reported on a study of the diets and water requirements of spinifex pigeons. Sixteen pigeons were captured in the desert and the crop (i.e., stomach) contents of each were examined. The weight of dry seeds in the crop of each pigeon was measured and recorded. The mean was 1.5 grams and the standard deviation was 0.22 grams. Find a 90% confidence interval for the average weight of dry seeds in the crops of spinifex pigeons inhabiting the Western Australian desert. (106 grams, 1.94 grams) (1403585 grams, 1.596415 grams) (0,48554 grams, 2.51446 grams) (1.409525 grams, 1.590475 grams)