Please, answer all steps. 13 Step 1: Calcium is important to the bone developmen
ID: 3208760 • Letter: P
Question
Please, answer all steps.
13 Step 1: Calcium is important to the bone development of young girls. To study how the bodies of young girls process calcium, investigators used the setting of a summer camp. Cacu or a low level. The camp diet was otherwise the same for all girls. Suppose that there are 40 campers. was given in punch at either a high Outline a completely randomized design for this experiment. True or False: Group1__ 20girls Punch at high level ofcalcium Observe how the calcium is processed Random assignment Group 2--+ 20girls Punch at low level of calcium True False Step 2: Calcium is important to the bone 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 punch at either a high or a low level. The camp diet was otherwise the same for all girls. Suppose that there are 40 campers. Describe a matched pairs design in which each girl receives both levels of calcium (with a washout period between) None of the designs is adequate. Randomly select 20 pairs of girls. In each pair, one subject receives high-calcium punch and the other receives low-calcium punch. Compute the difference in the response variable for each pair. Randomly select 20 girls to receive high-calcium punch, the others will receive low-calcium punch. Compute the difference in mean response for the two groups. Randomly select 20 girls to receive high-calcium punch first (and low-calcium punch later), while the others get low-calcium punch first (followed by high-calcium punch). For each subject, compute the difference in the response variable for each level.Explanation / Answer
1.
This is a random experiment as the girls are chosen randomly into two groups of 20 each and given the same diet otherwise
2.
For each girl receiving both the levels of calcium we must have option D as here the 20 girls are randomly chosen and given high punch and the other 20 are given low punch. The 20 who first got high are now given low and vice versa. This ensures that each of the girls has been given high as well as low punch of calcium
3.
The given statement is true as the condition is same now for all the girls , i.e. both high and low level of calcium and the same diet
4. Table B is not provided for this part
5. The 3rd option is correct as matched pair gets both the punches of calcium, low for one half and high the other whereas in the randomized one the same punch is given for both halves