Answered: 1. The authors of the paper "Serum Zinc…

Name: 1. The authors of the paper "Serum Zinc Levels of Cord Blood: Relation
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Description: 1. The authors of the paper "Serum Zinc Levels of Cord Blood: Relation to Birth Weight and Gestational Period"† carried out a study of zinc levels of low-birth-weight babies and normal-birth-weight babies. For a sample of 50 low-birth-weight babies,

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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1. The authors of the paper "Serum Zinc Levels of Cord Blood: Relation to Birth Weight and Gestational Period"† carried out a study of zinc levels of low-birth-weight babies and normal-birth-weight babies. For a sample of 50 low-birth-weight babies, the sample mean zinc level was 17.00 and the standard error

was 0.43. For a sample of 73 normal-birth-weight babies, the sample mean zinc level was 18.16 and the standard error was 0.32. Explain why the two standard errors are not the same.

The two standard errors are not the same since the formula for standard error has sample size in the (DENOMINATOR/NUMERATOR) . The sample size for normal birth weight babies is (SMALLER/LARGER) than the sample size for low-birth weight babies, which result in (SMALLER/LARGER) values for the standard error, which would explain the difference in the two standard errors.

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