Suppose you have a random sample of 2,179 credit scores from a population of mortgage applicants with a sample mean of 620 and sample standard deviation of 70, and would like to determine if this is sufficient enough to rule out that the population mean is not 610. Which of the following objects would you calculate to make this decision?
A. Consistent estimator
B. T-stat
C. Sample range
D. Normal distribution
Answer: B
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Which structure of the heart is attacked by the immune system in a case of rheumatic fever?
a. aorta b. vena cava c. myocardium d. heart valves e. sinoatrial node
In the 1600s, William Harvey studied reproduction and development. What is the term given to the theory that states that an organism develops from the fertilized egg by a succession of developmental events that lead to an adult?
A) epigenesis B) equational transformation C) transduction D) preformation E) sequential pattern formation
Which of the following is not one of the major plant hormones?
A. auxin B. ethylene C. calcitonin D. gibberellic acid E. abscisic acid
If the partial pressure of oxygen (pO2) in a man's blood plasma decreased below that in his red blood cells, what would be the result?
A. More oxygen would diffuse into his red
blood cells and be transported throughout his
body.
B. Oxygen would diffuse out of his red blood
cells, and less oxygen would be transported
throughout his body.
C. The concentration of oxygen would be the
same in red blood cells and blood plasma.