7. If mean blood iron concentration for children with adequate nutrition is u = 110 pg/dL, do the study results described in question #6 provide evidence that children in this poor neighborhood suffer from iron deficiency? a. State the Null and alternative hypotheses appropriate for this question. Hai Ha : b. Given n = 50 and S=35.4, describe the sampling distribution of X assuming Ho is true. Scale the X-axis of the sampling distribution accordingly. Shade the area under the curve that represents the p-value for a one-sample t-test = P[ X