Question: The average number of milligrams (mg) of sodium in a certain brand of low-salt microwave frozen dinners in 660 mg, and the standard deviation is 35 mg. Assume that sodium content in frozen dinners follows a normal distribution.

? Use Table 4 (Standard Normal probability table), software, or the TI-calculator to find the probability that the sodium content of a single dinner chosen at random will be more than 670 mg.

? Use the Central Limit Theorem to find the probability that the sample mean sodium content in a random sample of 10 dinners will be more than 670 mg.