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The mean of a normally distributed group of weekly incomes for a group of executives is $2,400 and the standard deviation is $600. What is the z-score for an income of $1,500/week

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princessesther2011

Answer:

The z-score is -1.5

Explanation:

z-score = (income - mean)/standard deviation

income = $1500

mean = $2400

standard deviation = $600

z-score = ($1500 - $2400)/$600 = -$900/$600 = -1.5

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