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Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 1.2 - Problem 8e
Get Full Access to Statistics For Engineers And Scientists - 4 Edition - Chapter 1.2 - Problem 8e

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# In a certain company, every worker received a \$50- ISBN: 9780073401331 38

## Solution for problem 8E Chapter 1.2

Statistics for Engineers and Scientists | 4th Edition

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Problem 8E

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, = = = Hence, = .

Therefore, the mean salary is raised by \$50.

Step3 of 3:

2). Standard deviation of X is given by: = = Hence, = Therefore, standard deviation will be same.

Step 2 of 3

Step 3 of 3

##### ISBN: 9780073401331

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