Problem 3E

The article “Inconsistent Health Perceptions for US Women and Men with Diabetes” (M. McCollum, L. Hansen, et al., Journal of Women’s Health, 2007:1421 -1428) presents results of a survey of adults with diabetes. The average body mass index (BMI) in a sample of 1559 men was 30.4, with a standard deviation of 0.6. The average BMI in a sample of 1924 women was 31.1 with a standard deviation of 0.2. Find a 99% confidence interval for the difference in mean BMI between men and women with diabetes.

Chapter 1 Classification of Matter -Elements -Simplest form of a matter -Cannot be broken down -Mixtures -Heterogeneous- can see two or more different types of matter with eye or magnification, Milk, Fizzy soda, -Homogeneous- Looks alike throughout, even under magnification, Brass, Black Coffee -Properties -Extensive- Depends on quantity of sample -Volume, length, mass, total cost -Intensive- Independent on quantity of sample -Color, Taste, Density, boiling point of water, price per unit, Concentration of salt in water, Luster/shininess Chapter 2 Factor Label Method A high school stude