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Calculate the standard error from the following descriptive statistics: a. s 1 = 24, s 2 = 21, n 1 = 36, n 2 =

Calculate the standard error from the following descriptive statistics:

a. s₁ = 24, s₂ = 21, n₁= 36, n₂ = 29

b. s₁ = 15.40, s₂ = 14.80, n₁ = 20, n₂= 23

c. s₁ = 12, s₂ = 10, n₁= 25, n₂ = 25

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