Calcium intake Calcium is important to the development of young girls. To study
ID: 3178771 • Letter: C
Question
Calcium intake Calcium is important to the development of young girls. To study how the bodies of young girls process calcium, investigators used the setting of a summer camp. Calcium was given in Hawaiian Punch at either a high or a low level. The camp diet was otherwise the same for all girls. Suppose that there are 60 campers. (a) Outline a completely randomized design for this experiment. (b) Describe a matched pairs design in which each girl receives both levels of calcium (with a "washout period" between). What is the advantage of the matched pairs design over the completely randomized design? (c) The same randomization can be used in different ways for both designs. Label the subjects 01 to 60. You must choose 30 of the 60. Use Table B at line 128 to choose just the first 5 of the 30. How are the 30 subjects chosen treated in the completely randomized design? How are they treated in the matched pairs design? In an experiment, one or more treatments are imposed on the experimental units or subjects. Each treatment is a combination of levels of the explanatory variables.Explanation / Answer
a)
The study has how the young girls taken calcium and how it effected on the young girls.
The calcium was given Hawaiian punch either a high level or low level.
That is, there are only two treatments.
b)
The matched pair design was applied on this study was the how much of the calcium level before taking calcium and after taken calcium measure how much the calcium level and record it.
This is a matched pairs design.
The advantage of matched pair design over completely randomized design was to test the calcium level of young girls but the completely randomized design the researcher want to test the difference between the low and high level of calcium taken.