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Forty-five specimens of a certain type of powder were

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

Solution for problem 2E Chapter 1.3

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 2E

Forty-five specimens of a certain type of powder were analyzed for sulfur trioxide content. Following are the results, in percent. The list has been sorted into numerical order.

14.1

14.4

14.7

14.8

15.3

15.6

16.1

16.6

17.3

14.2

14.4

14.7

14.9

15.3

15.7

16.2

17.2

17.3

14.3

14.4

14.8

15.0

15.4

15.7

16.4

17.2

17.8

14.3

14.4

14.8

15.0

15.4

15.9

16.4

17.2

21.9

14.3

14.6

14.8

15.2

15.5

15.9

16.5

17.2

22.4

a.         Construct a stem-and-leaf plot for these data.

b.        Construct a histogram for these data.

c.         Construct a dotplot for these data.

d. Construct a boxplot for these data. Does the box- plot show any outliers?

Step-by-Step Solution:

Answer

Step 1 of 4</p>

a) The stem and leaf plot is

      14/ 12333444467788889

      15/ 0023344567799

      16/ 124456

      17/ 2222338

      18/

      19/

      20/

      21/ 9

      22/ 4

Here left side values represents stem.

And right side values represents leaf.

Step 2 of 4</p>

b)Draw histogram in the excel by following the steps

Select the data range - Select insert - select column - Select first graph in the list

Then we will get histogram

Step 3 of 4

Chapter 1.3, Problem 2E is Solved
Step 4 of 4

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

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