The authors of the paper Development of Nutritionally At Risk Young Children Is Predicted by Malaria, Anemia,

The authors of the paper €œDevelopment of Nutritionally At Risk Young Children Is Predicted by Malaria, Anemia, and Stunting in Pemba, Zanzibar€ (The Journal of Nutrition [ 2009]: 763€“ 772) studied factors that might be related to dietary deficiencies in children. Children were observed for a fixed period of time, and the amount of time spent in various activities was recorded. One variable of interest was the amount of time (in minutes) a child spent fussing. Data for 15 children, consistent with summary quantities in the paper, are given in the accompanying table. Normal scores for a sample size of 15 are also given.

a. Construct a normal probability plot for the fussing time data. Does the plot look linear? Do you agree with the authors of the paper that the fussing time distribution is not normal?
b. Compute the correlation coefficient for the (normal score, x) pairs. Compare this value to the critical r value from Table 6.2 to determine if it is reasonable to think that the fussing time distribution is approximately normal.

Transcribed Image Text:

Fussing Time (x) Normal Score 0.05 0.10 0.15 040 0.70 1.05 1.95 2.15 3.70 3.90 450 6.00 8.00 11.00 14.00 -1.739 -1.245 0.946 -0.714 -0.515 0.335 -0.165 0.000 0.165 0.335 0.515 0.714 0.946 1.245 1.739