Mathematics, 03.09.2020 05:01 jaylanmahone223
A medical study was investigating if getting a flu shot actually reduced the risk of developing the flu. From a group of adult volunteers, researchers randomly assigned half to receive an injection that contained the drug believed to reduce the risk of getting the flu and the other half to receive an injection containing no active ingredient (i. e. sugar water). Because the control group received a placebo, what type of study was performed?A. Blinded. B. Observational. C. Blocked. C. Confounded. D. None of the above.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 18:00
Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).
Answers: 2
Mathematics, 22.06.2019 02:00
Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42
Answers: 3
Mathematics, 22.06.2019 04:30
Given: pb tangent pv,pu secants if m = 80° and m = 30°, then m 3 = 55 40 25
Answers: 1
You know the right answer?
A medical study was investigating if getting a flu shot actually reduced the risk of developing the...
Questions
English, 08.10.2021 01:00
German, 08.10.2021 01:00
Mathematics, 08.10.2021 01:10
Social Studies, 08.10.2021 01:10
Mathematics, 08.10.2021 01:10
Chemistry, 08.10.2021 01:10
Mathematics, 08.10.2021 01:10
Chemistry, 08.10.2021 01:10
Biology, 08.10.2021 01:10
Mathematics, 08.10.2021 01:10
Social Studies, 08.10.2021 01:10
History, 08.10.2021 01:10
