[Step-by-Step] The mean and standard deviation of the gross weekly income distribution of a local company’s 150 employees were determined to be $170 and $10, respectively.
Question: The mean and standard deviation of the gross weekly income distribution of a local company’s 150 employees were determined to be $170 and $10, respectively. Approximately what percentage of the employees would be expected to have incomes over $190 per week? Under $160 per week? If you were employed by this company and your weekly income was $185, how many standard deviations would your salary be away from the mean salary? What would your z-score then be?
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