Problem
The birth weights for twins are normally distributed with a mean of 2353 grams and the standard deviation of grams. (assume the bell-shaped distribution).
a. Use the z-score that corresponds to each birth weight to determine which birth weight could be considered unusual: 3690 gr, 1200 gr, 2000 gr, 2353 gr.
b. The birth weight of 2 randomly selected newborn twins are 1706 gr. and 3647 gr Using the Empirical Rule, find the percentile that corresponds to each birth weight.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.