Question

13. Sodium Amounts in Food Healthier diets generally involve lower sodium amounts. The American Heart Association recommends less than 2300 mg of sodium daily. (One teaspoon of table salt contains 2400 mg of sodium!) A random sample of prepared foods has the sodium amounts listed below. Is there sufficient evidence to conclude at a 0.05 that the standard deviation in sodium amounts in prepared foods exceeds 150 mg? 640 580 450 480 570 900 600 540 500 350 500 700 900

Answer 1