Answer
a. When μ = 40, σ = 4,
z= 0.25, X = 40+ 0.25σ = 40+ (0.25)(4) = 41
b. When μ = 40, σ = 8,
z= 0.25, X = 40+ 0.25σ = 40+ (0.25)(8) = 42
c. When μ = 40, σ = 16,
z= 0.25, X = 40+ 0.25σ = 40+ (0.25)(16) = 44
d. When μ = 40, σ = 32,
z= 0.25, X = 440+ 0.25σ = 40+ (0.25)(32) = 48
Work Step by Step
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