Suppose you want to build a 95% confidence interval for the ATE when the average outcome for the treated (55 subjects) is 12, with a sample standard deviation of 4, while the average outcome for the control (65 subjects) is 10, with a sample standard deviation of 6. Which of the following would be the proper confidence interval?
A. 0 ± 2.58 
B. 0 ± 1.96 
C. (12 - 10) ± 1.96 
D. 0 ± 1.96 
Answer: C
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Which observation(s) of the medium ground finch (Geospiza fortis) by Peter and Rosemary Grant verify Darwin's selection hypothesis? Check all that apply.
_____ Considerable variation existed in the beak size and shape of this finch. _____ The medium ground finch showed assortative mating according to beak size and shape. _____ Beak shape (depth) varied with the dryness of the year. _____ Offspring were similar to parents in beak size and shape.
The most recent common ancestor of all land plants was probably similar to modern-day members of which group?
A) green algae B) red algae C) charophytes D) brown algae E) angiosperms
GABA is a neurotransmitter in the brain that can be affected by alcohol use
Indicate whether the statement is true or false
Consider a biochemical pathway with five steps that lead to the production of product Q. If there is an abundance of product Q, the most efficient way to slow down the entire pathway would be to regulate ________.
A. the last enzyme in the pathway B. every enzyme in the pathway C. the first enzyme in the pathway