Vitamin D is needed for the body to use calcium. An experiment is designed the effects of calcium and vitamin D supplements on the bones of first-year college students. The outcome measure is the total body mineral content (TBBMC), a measure of bone health. Three doses of calcium wil be used: 0, 200, and 400 mg/day. The doses of vitamin D will be 0, 50, and 100 international units (IU) per day. The calcium and vitamin D will be given in a single tablet. Al tablets including those with no calcium and no vitamin D will look identical. Subjects for the study will be 90 men and 90 women.a) What are the factors and the treatments for this experiment?b) Draw a picture explaining how you would randomize the 180 college students to the treatmentsc) Use a spreadsheet to carry out the randomization
Answers
Answer:
(a) The factors are calcium dose, and Vitamin D dose. There are 9 treatments (each calcium/vitamin D combination).
(b) Assign 20 students to each group, with 10 of each gender. The complete diagram would have a total of 18 branches.
SUBJECTS:
Men---> Random Assignment---> Group 1---> Treatment 1---> measure TBBMC
Men---> Random Assignment---> Group 2---> Treatment 2---> measure TBBMC
Men---> Random Assignment---> Group 3---> Treatment 3---> measure TBBMC
Men---> Random Assignment---> Group 4---> Treatment 4---> measure TBBMC
Men---> Random Assignment---> Group 5---> Treatment 5---> measure TBBMC
Men---> Random Assignment---> Group 6---> Treatment 6---> measure TBBMC
Men---> Random Assignment---> Group 7---> Treatment 7---> measure TBBMC
Men---> Random Assignment---> Group 8---> Treatment 8---> measure TBBMC
Men---> Random Assignment---> Group 9---> Treatment 9---> measure TBBMC
Women---> Random Assignment---> Group 1---> Treatment 1---> measure TBBMC
Women---> Random Assignment---> Group 2---> Treatment 2---> measure TBBMC
Women---> Random Assignment---> Group 3---> Treatment 3---> measure TBBMC
Women---> Random Assignment---> Group 4---> Treatment 4---> measure TBBMC
Women---> Random Assignment---> Group 5---> Treatment 5---> measure TBBMC
Women---> Random Assignment---> Group 6---> Treatment 6---> measure TBBMC
Women---> Random Assignment---> Group 7---> Treatment 7---> measure TBBMC
Women---> Random Assignment---> Group 8---> Treatment 8---> measure TBBMC
Women---> Random Assignment---> Group 9---> Treatment 9---> measure TBBMC
(c) Randomization results will vary.
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3gallons (gal) =_____liters (L)
Answers
Answer:
3gallons (gal) = 11.35 liters
Step-by-step explanation:
This can be solved as a rule of three problem.
In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.
When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too.
When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease.
Unit conversion problems, like this one, is an example of a direct relationship between measures.
Each gallon has 3.78L. So
1 gallon - 3.78L
3 gallons - xL
liters
3gallons (gal) = 11.35 liters
Answers
Answer:
a
Step-by-step explanation:
Answer:
it's A or y=2x+3; y= -1/3x+3
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Step-by-step explanation:
S=b*h/2=8*10/2=40m2
40*4=160m²
Answer:
60 m2
Step-by-step
i did that before hope this helps :)
9x2-5x = 94x-8
Answers
Answer:
x=26262626262626...
Step-by-step explanation:
Answers
Ans. b) Cardinality of B is strictly greater than
What are sets?
In mathematics, a group or collection of certain items is referred to as a set.
Given, for sets A and B there exists an injective function but not a bijective function from A to B. If there is no bijective function from A to B, then B's cardinality is strictly bigger than A's since certain items in B have no preimage in A.
Therefore answer b) Cardinality of B is strictly greater than is correct
learn more about sets here:
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