Examlex
PART A
If allergies are caused by viruses, then a vaccine can be developed. Thus, a vaccine cannot be developed, because allergies are not caused by viruses.
The form of this argument is: a. b. c.
d. e. PART B
Which of the following substitutions proves the argument invalid?
A) A = cats, C = animals, V = dogs, D = climb trees.
B) A = Napoleon was killed in a plane crash. V = Napoleon is dead.
C) A = Robert was assassinated, V = Robert is dead.
D) A = cats, V = animals, D = mammals.
E) A = Shakespeare suffered a heart attack, V = Shakespeare is dead.
Sample Mean
The average of all values in a subset of a population, used as an estimate of the population mean.
Population Standard Deviation
The square root of the variance of a group, measuring how far individual measurements in the population deviate from the population mean.
Confidence Intervals
A range of values, derived from sample statistics, that is believed to contain the value of an unknown population parameter with a certain level of confidence.
Prediction Intervals
A prediction of the range within which future results are expected to occur, with a specified level of confidence, based on existing observations.
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