parietal pleura. The serous membrane that lines the chest cavity; it extends from the mediastinal roots of the lungs and covers the sides of the pericardium to the chest wall and backward to the spine. The visceral and parietal pleural layers are separated only by a lubricating secretion.
The allowableerror is the target value Â± 10%. Using theexample above, the serum cholesterol targetvalue was 200 mg/dL. The total error is 200mg/dL x 0.1 = 20 mg/dL and the acceptabletotal error limits is 180 to 220 mg/dL.First, always determine if within run isacceptable.
Thus, the term is called the margin of error with confidence level. If, then t is close to 2.0. For this reason, the 95% margin of error is often written as. When working with a random sample, the exact critical value t is read from a table or calculator, and depends on the sample size.