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Normal,
y
1
Normal,
y
1
and
y
2
Student's
t
χ
2
μ
(the mean of the normal distribution)
σ
(the standard deviation of the normal distribution)
y
1
(the
first
cut-off value)
The lower tail area
The upper tail area
y
2
(the second cut-off value)
t
(the cut-off value)
ν
(the degrees-of-freedom parameter)
The combined tail area
χ
2
(the test statistic)
ν
(the degrees-of-freedom parameter)