Answered: As part of its interview process, an…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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As part of its interview process, an employment agency tests the client's typing speed. The stem and leaf display below shows the results for the most recent clients, 19 of whom received a job offer and 16 of whom did not. Answer the questions that follow.

Typing speeds (words per minute)

Offer. No offer

8 4 4. 3. 1 5

9 9 7 6 1 0 0. 4. 2 3 3

9 7 7 4 3 0. 5. 0 0 1 1 2 5 6 9

5 3 0. 6. 1 2 3

1. What were the ranges of typing speeds for the two groups?

Offer

No offer

2. Which group had the higher median typing speed?

Offer

No offer

The medians were the same

3. Which group had more typing speeds in the 30s?

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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