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The recommended dietary allowance​ (RDA) of iron for adult females is 18milligrams​ (mg) per day. The...

The recommended dietary allowance​ (RDA) of iron for adult females is 18milligrams​ (mg) per day. The given iron intakes​ (mg) were obtained for 45 random adult females. At the 1​% significance​ level, do the data suggest that adult females​ are, on​ average, getting less than the RDA of 18mg of​ iron? Assume that the population standard deviation is 4.9mg. Preliminary data analyses indicate that applying the​ z-test is reasonable.​ note (sample mean = 14.66mg)

state the hypothesis for one-mean z test

compute the value test statistic

determine P-value

Math   Statistics-And-Probability   
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