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Jeff-s Psych 210 Exam 3 JMU TEST(56 QUESTIONS AND ANSWERS).
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Jeff-s Psych 210 Exam 3 JMU TEST(56 QUESTIONS AND ANSWERS).
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Jeff's Psych 210Exam 3 JMU
TEST(56
QUESTIONS AND
ANSWERS)
Sampling Distribution Definition - answer
formal and abstract way of determining the
probability of any possible value of a
statistic. formal - it encompasses every
possible sample mean and abstract - we don't
calculate it due to the infinite nature of
numbers
Sampling Distribution Purpose - answer
answers how likely/unlikely a score is to
occur in a given distribution, serves as the
basis for hypothesis testing. if we know the
, center (μ sub m), spread (σ sub m), and form
(normal) of the distribution, we can
determine the probability of any single score
occuring
Sampling Distribution Graphing - answer
frequency distribution containing all possible
sample means, every point is a group mean,
not an individual score
μ sub m - answer the mean of the sampling
distribution
σ sub m - answer standard error of the mean
(SEM)
σ sub m calculation - answer σ (SD of
population) divided by N, as N increases,
variability of distribution decreases
Form of Sampling distribution - answer
normal looking, central limit theorem says
when N is greater than 30, the form is
approximately normal
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