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Evaluate the formula z= x−μ σ n when μ=119​, n=29​, x=116​, and σ=9.

Evaluate the formula z= x−μ σ n when μ=119​, n=29​, x=116​, and σ=9.
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Evaluate the formula z=
x−μ
σ
n when μ=119​, n=29​, x=116​, and σ=9.

Evaluate the formula z= x−μ σ n when μ=119​, n=29​, x=116​, and σ=9.-example-1
User SSH
by
8.3k points

1 Answer

6 votes

Answer: -1.795

Work Shown:


z = \frac{\overline{x}-\mu}{(\sigma)/(√(n))}\\\\z = (116-119)/((9)/(√(29)))\\\\z \approx (-3)/((9)/(5.3851648))\\\\z \approx (-3)/(1.671258)\\\\z \approx -1.795055\\\\z \approx -1.795\\\\

User Eric Ipsum
by
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