Mathematics, 21.04.2020 16:59 moneymaleia9264
A study is designed to evaluate the impact of a daily multivitamin on students’ academic performance. One hundred sixty students are randomly assigned to receive either the multivitamin or a placebo and are instructed to take the assigned drug daily for 20 days. On day 20, each student takes a standardized exam and the mean exam scores are compared between groups. This study is an example of a
a. Randomized Control trial.
b. case-control study
c. cohort study
d. crossover trial
Answers: 1
Mathematics, 21.06.2019 18:00
Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 Ă— 0 . 000328 = 3 . 28 Ă— =3.28Ă—10 = 3 . 28 Ă— 10
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Mathematics, 21.06.2019 19:10
What is the absolute value of the complex number -4-sqrt2i
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Mathematics, 21.06.2019 20:40
Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?
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A study is designed to evaluate the impact of a daily multivitamin on students’ academic performance...
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