In order to answer the given question, which of the following types of study would be the most appropriate: an experiment without blinding, an experiment with single blinding, an experiment with double blinding, an observational study, or a case-control study?Do Super-Slimmer Shakes increase weight loss?
A. Experiment with single blinding
B. Experiment with double blinding
C. Case-control study
D. Observational study
E. Experiment without blinding
Answer: A
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Determine the equation of the given line, as well as the slope of the line. If the slope is undefined, state this.
A. y = x - 8, m = 1 B. y = -4, m = 0 C. x = -4, m = 0 D. y = x - 4, m: undefined
In order to determine the effectiveness of a new vaccine that is alleged to cure "math anxiety," a study was conducted. One thousand volunteer college students enrolled in math courses across the U.S. were chosen. The 1000 students were broken up into two groups. Those enrolled in calculus courses were given the real vaccine. The students in developmental (remedial) math courses were given a fake vaccine consisting of sugared water. None of the students knew whether they were being given the real or the fake vaccine, but the researcher conducting the study knew. At the end of the semester the students were given a test that measured their level of math anxiety. The students in the treatment group showed significantly lower levels of math anxiety than those in the control group. On the
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Determine whether the terms are like or unlike.15z3 and -12z3
A. like B. unlike
Multiply the polynomials.(x - 5)(9x2 + x + 9)
A. 9x3 - 44x2 + 14x - 45 B. 9x3 - 46x2 + 4x - 45 C. 9x3 - 44x2 + 4x - 45 D. 9x3 + 44x2 + 4x - 45