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(See Solution) Iron Deficiency? Refer to Exercise 9.8 on page 404. The following iron intakes, in milligrams, were obtained during a 241-hour period for 45

Question: Iron Deficiency? Refer to Exercise 9.8 on page 404. The following iron intakes, in milligrams, were obtained during a 241-hour period for 45 randomly selected adult females under the age of 51.

At the \(1 \%\) significance level, do the data suggest that adult females under the age of 51 are, on average, getting less than the RDA of \(18 \mathrm{mg}\) of iron? Assume that the population standard deviation is 4.2 \(mg. (Note:\) \(\bar{x}=14.68\) mg)

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