answer b let 500 donors to receive the literature and 500 donors to receive the
ID: 3352860 • Letter: A
Question
answer b
let 500 donors to receive the literature and 500 donors to receive the phone call. After the donation collection period, compare the average or total amount collected from each of the two treatment groups. Randomly select 100 donors to receive the literature and 900 donors to receive the phone call After the donation collection period, calculate the average or total amount collected from the 500 donors in the treatment group (b) A tooth-whitening gel is to be tested for effectiveness. A group of 85 adults have volunteered to participate in the study. Of these, 43 are to be given a gel that contains the tooth-whitening chemicals. The remaining 42 are to be given a similar-looking package of gel that does not contain the tooth-whitening chemicals. A standard method will be used to evaluate the whiteness of teeth for all participants. Then the results for the two groups will be compared. (Select all that apply.) After the treatment period, compare the whiteness of the two groups. Randomly select 85 adults to be given the treatment gel Randomly select 43 adults to be given the treatment gel The remaining 42 adults receive the placebo gel. A placebo is not being used El After the treatment period, compare the whiteness of the 43 treated adults How could this experiment be designed to be double-blind? O The patients would not know which gel they are receiving Neither the treatment administrators nor the patients would know which gel the patients are receiving Tha natiante winuld n Type here to searchExplanation / Answer
The Answer is
1) After the treatment period, compare the whiteness of two groups.
3) randomly select 43....
4) The remaining 42 adult....
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