Question

The annual earnings of all employees with CPA certification and 6 years of experience and working for large firms have a bell-shaped distribution with a mean of $134,000 and a standard deviation of $12,000.
a. Using the empirical rule, find the percentage of all such employees whose annual earnings are between
i. $98,000 and $170,000
ii. $110,000 and $158,000
b. Using the empirical rule, find the interval that contains the annual earnings of 68% of all such employees.


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  • CreatedAugust 25, 2015
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