Mathematics, 02.03.2020 19:15 ultimatesaiyan
A study claims that the combination of vitamin C with vitamin E is more effective for preventing the flu than vitamin C alone. In the study, a group of researchers studied 1132 subjects. The subjects were randomly assigned to one of the three study groups. The first group of 310 subjects were instructed to take 600 mg daily of vitamin C. The second group of 418 subjects were instructed to take 600 mg of vitamin C and 200 IU of vitamin E daily. The third group of 404 subjects were instructed to take 600 mg of vitamin C and 400 IU of vitamin E daily. The incidence of flu over a season was recorded. All subjects knew which treatment they were receiving. i) In this study, which group is the control group? Blank 1 A) Group 2 B) the 1132 subjects C) Group 3 D) Group 1 E) There is no control group. ii) The study is Blank 2 A) double-blind B) not an experiment C) not blind D) blind, but not double-blind E) none of the above
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Mathematics, 22.06.2019 01:30
You have 37 coins that are nickels, dimes, and pennies. the total value of the coins is $1.55. there are twice as many pennies as dimes. find the number of each type of coin in the bank.
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Mathematics, 22.06.2019 02:00
Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?
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A study claims that the combination of vitamin C with vitamin E is more effective for preventing the...
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