Nonexperimental data are likely to have issues with all of the follow assumptions except for what?
A. Sufficiently large sample size to appeal to normality
B. Random sample from the population
C. Random assignment of treatment
D. None of the answers is correct.
Answer: A
You might also like to view...
Suppose you explored a new planet and found a photosynthetic organism unlike any on Earth. You repeat
Engelmann's classic experiment using this new organism in place of Spirogyra and find that oxygen-dependent bacteria cluster near the green and yellow portions of the spectrum. What does this tell you?
a. The sun of this new planet emits different wavelengths of light than our own. b. This new organism is using yellow and green light to drive photosynthesis. c. This organism appears green, just like plants on Earth. d. This organism utilizes the most energy-rich photons of the spectrum. e. This new organism is using blue and red light to drive photosynthesis.
Which of the following is an exotic species?
a. Sumatran tiger b. koalas c. brown tree snake in Guam d. Atlantic cod
What key advantage do angiosperms have over gymnosperms?
A. Angiosperms go through alternation of generations. B. The angiosperms can produce spores which are more stable than seeds from gymnosperms. C. Angiosperms produce pollen and do not require water to reproduce. D. Angiosperms can produce flowers and fruits to aid in seed dispersal. E. Angiosperms have a vascular system, which allowed them to grow taller.
Deoxyribose has a carbon atom that is not part of the pentose ring. In a nucleotide, what is attached to this carbon?
A. a nitrogenous base B. a phosphate group C. one hydrogen atom D. three hydrogen atoms