Answered: Min Q1 Median Q3 Max No Caffeine 15 16…

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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Question

Caffeine A student study of the effects of caffeine asked

volunteers to take a memory test 2 hours after drink-
ing soda. Some drank caffeine-free cola, some drank

regular cola (with caffeine), and others drank a mixture
of the two (getting a half-dose of caffeine). Here are the5-number summaries for each group’s scores (number of
items recalled correctly) on the memory test:a) Describe the W’s for these data.
b) Name the variables and classify each as categorical or
quantitative.
c) Create parallel boxplots to display these results as best
you can with this information.
d) Write a few sentences comparing the performances of
the three groups.

Min
Q1
Median
Q3
Max
No Caffeine
15
16
20
21
24
26
Low Caffeine
15
16
18
21
24
27
High Caffeine
15
12
17
19
22
24
т

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