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A department store has average daily sales of $29,876.76. The standard deviation of sales is $1000. On Tuesday, the store sold $34,893.71 worth of goods. Find Tuesday's z score.

Respuesta :

Answer with explanation:

Mean[tex]\Bar X[/tex] = $ 29,876.76

Standard Deviation[tex]\sigma[/tex] =  $1000

[tex]\mu[/tex] =$34,893.71

Z-Score Formula

     [tex]Z_{score}=\frac{\Bar X -\mu}{\sigma}\\\\Z_{score}=\frac{29876.76-34893.71}{1000}\\\\=\frac{-5016.95}{1000}\\\\=-5.01695\\\\=-5.02[/tex]

So, Tuesday Z-Score= -5.02

 

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