Statistics for Everyday Life – 3470: 250
Formula Sheet
PLEASE DO NOT WRITE ON THIS SHEET
Test #1 Formulas:
̅
∑
√
∑
̅
Test #2 Formulas:
μ=∑
μ=np
σ √
Z
Test #3 Formulas:
Mean of the sampling distribution of ̂ = p
SD of the sampling distribution of ̂ = √
Mean of the sampling distribution of ̅ = μ
SD of the sampling distribution of ̅ =
√
̂
̂
̂
̂
̂
̂
̅
√
̅
⁄√
√
Test #4 Formulas:
̅
∑
̅
∑
(
√
)
df = (r – 1)(c – 1)
̅
⁄√
√