Question

Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random sample of 46 male firefighters are tested and that they have a plasma volume sample mean of x = 37.5 ml/kg (milliliters plasma per kilogram body weight). Assume that σ = 7.20 ml/kg for the distribution of blood plasma.

Answer 1

Sold 13) J = 37.5 0=720 n=46 (1) Corresponding to 99% CI 7 Vale = 2.57S. :99% CI = (1-z. siūt z. s. 2.13423, 10:23.) lower limit = 34.77 Upper limit= 40.23 margin of error = 2.2 = 2.73 (6) o is known n is large (d) {52.80 & R.SAS X ?? (2.80 n243.84 Thus, (44) male bine tighters... = 138.5 8=44.5 = 35. (a) corresponding to 90% CI z value = 1.6.4.s.... .90% SI = "(13.8.5-1645. X. 138.5 +1 (48) =126.1, 150.9) ra

TIL VULCS lower likit = Rol upper limit -15o. 9 margin of who 13.4 To) corresponding to 95% CI, 7 val. = 19.6. Similar to lao lower limil - E28 123.8. Upper hit = 15.3.2.... marginal error = 14.7. (c) corresponding to 99% (1, z value = 2.575 lower limit -119.1 Upper hit = 157.9. margin of the = 19.4.