The Normal Distribution Function
Critical Values for the t-Distribution
Critical Values for the χ²-Distribution
If Z~N(0, 1) then, for each value of z, the table gives the value of Φ(z), where:
Φ(z)=P(Z≤z)
For negative values of z use Φ(-z) = 1-Φ(z).
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If T has a t-distribution with ν degrees of freedom then, for each pair of values of p and ν, the table gives the value of t such that
P(T≤t) = p.
The last row (ν = ∞) also gives the critical values for the Normal(0,1) distribution.
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If X has a χ²-distribution with ν degrees of freedom then, for each pair of values of p and ν, the table gives the value of x such that
P(X≤x) = p.
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