Mathematics, 14.12.2019 05:31 JohnStewart714
The recommended dietary allowance (rda) of iron for adult females is 18 milligrams (mg) per day. the given iron intakes (mg) were obtained for 45 random adult females. at the 10% significance level, do the data suggest that adult females are, on average, getting less than the rda of 18 mg of iron? assume that the population standard deviation is 4.2 mg. preliminary data analyses indicate that applying the z-test is reasonable. (note: x bar equals=14.65 mg.)
1. state the hypotheses for the one-mean z-test.
2. compute the value of the test statistic. z=
3. determine the critical value(s).
the null hypothesis. at the 10% significance level, the evidence to conclude that adult females are the rda of iron, on average.
Answers: 2
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The recommended dietary allowance (rda) of iron for adult females is 18 milligrams (mg) per day. the...
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