# Answer: Using Technology to Find Quartiles and Draw Graphs

## Problem 28E Chapter 2.5

Elementary Statistics: Picturing the World | 6th Edition

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Elementary Statistics: Picturing the World | 6th Edition

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Problem 28E

Using Technology to Find Quartiles and Draw Graphs In Exercise, use technology to (a) find the data set’s first, second, and third quartiles, and (b) draw a box-and-whisker plot that represents the data set.

Hourly Earnings The hourly earnings (in dollars) of a sample of 25 railroad equipment manufacturers

 15.6 18.75 14.6 15.8 14.35 13.9 17.5 17.55 13.80 14.2 19.05 15.35 15.2 19.45 15.95 16.5 16.30 15.25 15.05 19.1 15.2 16.22 17.75 18.4 15.25
Step-by-Step Solution:
Step 1 of 3

Solution 28E

Step1 of 3:

From the given problem we have a data set and it is given below:

 15.6 18.75 14.6 15.8 14.35 13.9 17.5 17.55 13.8 14.2 19.05 15.35 15.2 19.45 15.95 16.5 16.3 15.25 15.05 19.1 15.2 16.22 17.75 18.4 15.25

Here our goal is:

a). We need to find quartiles

b). We need to draw a box-and-whisker plot that represents the data set.

Step2 of 3:

a).

1). The value of is obtained from Excel by using the function “=quartile(Select all dat, 1).”

Hence,

Similarly,

2). The value of is obtained from Excel by using the function “=quartile(Select all dat, 2).”

Hence,

3)....

Step 2 of 3

Step 3 of 3

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Answer: Using Technology to Find Quartiles and Draw Graphs

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