In trying to measure the "treatment effect" of getting an MBA on career earnings, the observation that individuals with an MBA have higher salaries than individuals without them is likely to suffer from which of the following?
A. ETT > ATE
B. ETT = ATE
C. Selection Bias > 0
D. ETT < ATE
Answer: A
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Isotopes are different forms of the same element that
A. differ in their number of neutrons. B. differ in their number of protons. C. are all produced artificially. D. cannot form covalent bonds. E. cannot form ions.
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a. cerebral spinal fluid b. intracellular fluid c. extracellular fluid d. bloodstream e. synapses
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A) They are the only organelles wrapped in a lipid-based membrane. B) They are the only organelles that are located in the cytosol. C) They are the only organelles that contain DNA. D) They are the only organel