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In a certain company, every worker received a $50-

Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi ISBN: 9780073401331 38

Solution for problem 8E Chapter 1.2

Statistics for Engineers and Scientists | 4th Edition

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Statistics for Engineers and Scientists | 4th Edition | ISBN: 9780073401331 | Authors: William Navidi

Statistics for Engineers and Scientists | 4th Edition

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Problem 8E

In a certain company, every worker received a $50- per-week raise. How does this affect the mean salary? The standard deviation of the salaries?

Step-by-Step Solution:
Step 1 of 3

Solution 8E

Step1 of 3:

We have company in that every worker recieved a $50 per week raise.

We need to check How does this affect the mean salary? and  The standard deviation of the salaries?

Step2 of 3:

Let be the old salary of workers.

1).Mean of the X is given by:

     

     Where,

     = Mean

      x = random variable

     N = sample size

         = 3.

     Now,

     

                  =

                 =

                 =

 ...

Step 2 of 3

Chapter 1.2, Problem 8E is Solved
Step 3 of 3

Textbook: Statistics for Engineers and Scientists
Edition: 4
Author: William Navidi
ISBN: 9780073401331

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In a certain company, every worker received a $50-

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