9.85 Iron Deficiency? Iron is essential to most life forms and to normal human physiology. It is an integral part of many proteins and enzymes that maintain good health. Recommendations for iron are provided in Dietary Reference Intakes, developed by the Institute of Medicine of the National Academy of Sciences. The recommended dietary allowance (RDA) of iron for adult females under the age of 51 is 18 milligrams (mg) per day. The following iron intakes, in milligrams, were obtained during a 24-hour period for 45 randomly selected adult females under the age of 51. 15.0 18.1 14.4 16.0 12.6 16.6 15.3 9.4 19.5 14.6 11.9 12.5 17.0 6.3 16.8 18.1 18.2 18.3 15.0 15.6 11.6 12.8 11.0 16.4 12.5 17.3 12.4 16.3 11.5 14.6 10.9 20.7 19.8 18.3 14.5 16.6 11.5 18.6 13,1 12.1 10.7 12.5 16.3 14.7 12.7 At the 1% significance level, do the data suggest that adult females un- der the age of 51 are, on average, getting less than the RDA of 18 mg of iron? Assume that the population standard deviation is 4.2 mg. (Note: 14.68 mg.)
9.85 Iron Deficiency? Iron is essential to most life forms and to normal human physiology. It is an integral part of many proteins and enzymes that maintain good health. Recommendations for iron are provided in Dietary Reference Intakes, developed by the Institute of Medicine of the National Academy of Sciences. The recommended dietary allowance (RDA) of iron for adult females under the age of 51 is 18 milligrams (mg) per day. The following iron intakes, in milligrams, were obtained during a 24-hour period for 45 randomly selected adult females under the age of 51. 15.0 18.1 14.4 16.0 12.6 16.6 15.3 9.4 19.5 14.6 11.9 12.5 17.0 6.3 16.8 18.1 18.2 18.3 15.0 15.6 11.6 12.8 11.0 16.4 12.5 17.3 12.4 16.3 11.5 14.6 10.9 20.7 19.8 18.3 14.5 16.6 11.5 18.6 13,1 12.1 10.7 12.5 16.3 14.7 12.7 At the 1% significance level, do the data suggest that adult females un- der the age of 51 are, on average, getting less than the RDA of 18 mg of iron? Assume that the population standard deviation is 4.2 mg. (Note: 14.68 mg.)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
Problem 22EQ
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Transcribed Image Text:9.85 Iron Deficiency? Iron is essential to most life forms and to
normal human physiology. It is an integral part of many proteins and
enzymes that maintain good health. Recommendations for iron are
provided in Dietary Reference Intakes, developed by the Institute of
Medicine of the National Academy of Sciences. The recommended
dietary allowance (RDA) of iron for adult females under the age
of 51 is 18 milligrams (mg) per day. The following iron intakes, in
milligrams, were obtained during a 24-hour period for 45 randomly
selected adult females under the age of 51.
15.0
18.1
16.0 12.6.
15.3
9.4
14.6
11.9
17.0
6.3
18.2
18.3
15.0
10.9 18.1
19.8 11.6 12.8 15.6 11.0
14.5
16.6
11.5
16.4
12.5
13,1
10.7
12.1
17.3
12.4
16.3 14.7 12.7 16.3
11.5
=
14.6
14.4
16.6 20.7
19.5 18.3
12.5
18.6
16.8
12.5
At the 1% significance level, do the data suggest that adult females un-
der the age of 51 are, on average, getting less than the RDA of 18 mg
of iron? Assume that the population standard deviation is 4.2 mg.
(Note: 14.68 mg.)
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