Is there an association between hair colour and body type? The table below shows the results of a researcher's observations of one randomly selected sample who were classified according to hair colour and body type.
Is there an association between hair colour and body type? The table below shows the results of a researcher's observations of one randomly selected sample who were classified according to hair colour and body type.
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
Test statistics=
(Round the expected counts to 2 decimal places and show your final answer for the test statistic to 3 decimal places.)
Transcribed Image Text:Is there a difference between community college statistics
students and university statistics students in what
technology they use on their homework? Of the randomly
selected community college students 54 used a computer,
86 used a calculator with built in statistics functions, and
28 used a table from the textbook. Of the randomly
selected university students 48 used a computer, 76 used a
calculator with built in statistics functions, and 25 used a
table from the textbook. Conduct the appropriate
hypothesis test using an a = 0.05 level of significance.
Transcribed Image Text:Is there an association between hair colour and body
type? The table below shows the results of a researcher's
observations of one randomly selected sample who were
classified according to hair colour and body type.
Frequencies of Hair Colours for Various Body Types
Red
Head
Blonde
Brunette
Short and
72
93
53
Slender
Short and Heavy
83
117
69
Tall and Slender
52
111
64
Tall and Heavy
54
112
64
What can be concluded at the a = 0.05 significance level?
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