Answer:
The correct selections are:
B) After the donation collection period, compare the average or total amount collected from each of the two treatment groups.
C) A placebo is not being used
F) Randomly select 500 donors to receive the literature and 500 donors to receive the phone call.
Step-by-step explanation:
What this question requires from you, is to identify the correct characteristics of the study described. Let us explain why each of the selections was made.
B) After the donation collection period, compare the average or total amount collected from each of the two treatment groups: The purpose of the study is to determine the difference in the effectiveness of two methods of fundraising. Therefore at the end of the study, the average total amount raised from each group will be compared to determine which was more effective.
C) A placebo is not being used: Placebos are sham treatments used in a control group without their knowledge. The placebos do not produce any effect similar to the results anticipated the actual treatment. Here, no group is given sham treatment, there is no "control" group given placebos hence placebos are not used.
F) Randomly select 500 donors to receive the literature and 500 donors to receive the phone call: To remove any form of bias in the study, the selection of the groups is done at random, and the number of participants in each group is the same, so as to maintain uniformity during the comparison.
<h3>
Answer: 6</h3>
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Work Shown:
a÷6 = 1
6*(a÷6) = 6*1 ... multiply both sides by 6
(6a)÷6 = 6
(6÷6)a = 6
(1)a = 6
a = 6
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Check:
Replace 'a' with 6 and we see that,
a÷6 = 1
6÷6 = 1
Which is a true statement. Dividing any number but zero over itself is always 1.
5(n-4)=(4n-12)
First: Distribute 5 into n and -4.
5(n-4)=(5n)+(5*-4)= 5n-20.
Second: Subtract 4n from both sides to eliminate the variable from the right side of the equation.
(5n-20)=(4n-12)
n-20=-12
Next: Add 20 to both sides to eliminate the constant from the left side of the equation.
n-20=-12
n=8
The unknown number is 8.
Answer:
4 days
Step-by-step explanation:
first convert 1/4 to eighths
2/8=1/4
to make 2/8 equal 7/8
you have to multiply by 4 for it to be 8/8
it cant be 7/8 because that would be three and a half days and they only read 1/4 each day
so it would take 4 days to finish
