Iron Content of the Body. The null and alternative hypotheses obtained in Exercise 9.17 are, respectively, H0: μ = 8 mg Ha: μ < 8 mg, where μ is the mean iron intake (per day) of all adult males under the age of 50 years.

i. σ = 2.33 ii. α = 0.01 iii. n = 45 iv. μa = 5.50, 5.75, 6.00, 6.25, 6.50, 6.75, 7.00, 7.25, 7.50, 7.75.