General Knowledge Economy

To test H0 : μ = μ0 when both μ, and σ are unknown, the relevant test statistic is :

1
tn-1 = x̄ - μ0/s’ / √n
2
tn-1 = x̄ - μ0/s’ / √n-1
3
tn = x̄ - μ0/s’ / √n
4
tn-1 = x̄ - μ0/s’ / n

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