3- Insulin-like growth factor 1 (IGF-1) is a hormone that plays an important role in childhc growth and may be associated with several types of cancer. In some studies, it is measured in serum, and in other studies it is measured in plasma. Blood plasma is prepared by spinning a tube of fresh blood containing an anti-coagulant in a centrifuge until the blood cells fall to the bottom. The blood plasma is then poured or drawn off. Blood serum is blood plasma without clotting factors (i.e., whole blood minus both the cells and the clotting factors). In a multi-center study, IGF-1 was measured in some centers with serum and in other centers with plasma. The following results were obtained: TABLE 8.33 Comparison of IGF-11evels measured in serum vs. plasma IGF-1 (ng/mL) mean sd serum 140 149.1 42.3 plasma 404 136.6 49.0 Assuming that the distribution of IGF-1 is approximately normal, and equality of the variances, nat test can be used to compare the mean IGF-1 obtained from the two sources? Perform the test in Problem (i) and write your interpretation.

3- Insulin-like growth factor 1 (IGF-1) is a hormone that plays an important role in childhc growth and may be associated with several types of cancer. In some studies, it is measured in serum, and in other studies it is measured in plasma. Blood plasma is prepared by spinning a tube of fresh blood containing an anti-coagulant in a centrifuge until the blood cells fall to the bottom. The blood plasma is then poured or drawn off. Blood serum is blood plasma without clotting factors (i.e., whole blood minus both the cells and the clotting factors). In a multi-center study, IGF-1 was measured in some centers with serum and in other centers with plasma. The following results were obtained: TABLE 8.33 Comparison of IGF-11evels measured in serum vs. plasma IGF-1 (ng/mL) mean sd serum 140 149.1 42.3 plasma 404 136.6 49.0 Assuming that the distribution of IGF-1 is approximately normal, and equality of the variances, nat test can be used to compare the mean IGF-1 obtained from the two sources? Perform the test in Problem (i) and write your interpretation.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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