Question

A sample of n = 100 gives x̅ = 22.64 and s = 18.14.

Testing H₀: μ = 20 vs H₁: μ ≠ 20, which statement is CORRECT?

A SE = 2.2675, t = 1.165; fail to reject H₀ at 5%

B SE = 1.814, t = 1.455; fail to reject H₀ at 5% (critical value ≈ 2.00)

C SE = 1.814, t = 2.640; reject H₀ at 5%

D SE = 2.268, t = 1.165; reject H₀ at 1%

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