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WOLFRAM|DEMONSTRATIONS PROJECT

Hypothesis Tests about a Population Mean

​
test type:
H
a
: μ ≥
μ
0
H
0
: μ =
μ
0
H
a
: μ ≤
μ
0
H
0
: μ =
μ
0
H
a
: μ ≠
μ
0
H
0
: μ =
μ
0
sample size
μ
0
α
population variance
random seed
In this Demonstration, the test statistic is marked in red, the
p
-value is the purple area, the black line marks the boundary of the rejection region when the significance level is
α
, and the blue area is equal to
α
. Samples are drawn from a uniformly distributed population with mean zero and variance controlled by the slider.
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