Answered: Iron-deficiency anemia is an important…

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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Question

Iron-deficiency anemia is an important nutritional health
problem in the United States. A dietary assessment was
performed on 51 boys 9 to 11 years of age whose families
were below the poverty level. The mean daily iron intake
among these boys was found to be 12.50 mg with standard
deviation 4.75 mg. Suppose the mean daily iron intake
among a large population of 9- to 11-year-old boys from
all income strata is 14.44 mg. We want to test whether the
mean iron intake among the low-income group is different
from that of the general population.

Problem a) State the hypotheses that we can use to consider
this question.
Problem b) Carry out the hypothesis test in Problem a using the critical-value method with an α level of 0.05, and summarize your findings.

Problem c) What is the p-value for the test conducted in Problem b?

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