Atest for the level of potassium in the blood is not perfectly precise. moreover, the actual level of potassium in a person's blood varies slightly from day to day. suppose that repeated measurements for the same person on different days vary normally with sigma equals 0.02.
a) julie's potassium level is measured once. the result is x-bar = 3.4. give a 90% confidence interval for her mean potassium level.

the answer would

d. skeletal muscles and sensory receptors select the best answer from the choices provided.

hope it

is the art and science of cultivating the soil, growing crops and raising livestock. it includes the preparation of plant and animal products for people to use and their distribution to markets.

agriculture provides most of the world’s food and fabrics. cotton, wool, and leather are all agricultural products. agriculture also provides wood for construction and paper products.

these products, as well as the agricultural methods used, may vary from one part of the world to another.