Suppose that the average salary of the employees of a large company that recently ended a strike action is $40,000/yr with a standard deviation of $2000. To end the strike, management will raise staff salaries such that the new average salary will be $42,000/yr with a standard deviation of $2100. Which of the following best describes the raise?   A. The staff salaries will be increased by $2000/yr. B.The staff salaries will be increased by $1000/yr. C.Each employee will receive a 10% raise. D. Each employee will receive a 5% raise

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Q5 Suppose that the average salary of the employees of a large company that recently ended a
strike action is $40,000/yr with a standard deviation of $2000. To end the strike, management
will raise staff salaries such that the new average salary will be $42,000/yr with a standard
deviation of $2100. Which of the following best describes the raise?
 
A. The staff salaries will be increased by $2000/yr.
B.The staff salaries will be increased by $1000/yr.
C.Each employee will receive a 10% raise.
D. Each employee will receive a 5% raise.
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