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The average (i.e., mean) amount of time that a manager at the Cimaron Valley Department of Human Services spends in the annual performance review with
The average (i.e., mean) amount of time that a manager at the Cimaron Valley Department of Human Services spends in the annual performance review with an employee is 20 minutes, with a standard deviation of 5 minutes, which follows normal distribution. (Note: use the z-score that best matches the probability of your interest in Appendix)
- What percentage of the annual performance reviews in the department would be estimated to take between 15 and 25 minutes?(Report your answer rounding to two decimal places. For example, 2.99%). Please report your answers following the order of A, B, and C refering to normal distribution table in appendix of your textbook.
___ %
- What percentage of the annual performance reviews would be estimated to take more than 32 minutes ? (Report your answer rounding to two decimal places. For example, 2.99%)
___%
- What percentage of the annual performance reviews would be estimated to take less than 20 minutes?
___%
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