c. The test-statistic for this data = d. The p-value for this sample= (Please show your answer to three decimal places.) (Please show your answer to four decimal places.)
c. The test-statistic for this data = d. The p-value for this sample= (Please show your answer to three decimal places.) (Please show your answer to four decimal places.)
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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I need the right answers to c and d.
Transcribed Image Text:A fitness trainer is interested in investigating whether ethnicity and the first exercise activity
that members engage in are dependent. The table below shows the results of the trainer's observation of
randomly selected members.
Frequencies of Ethnicity and Exercise Activity
Cardio Weight Machines Free Weights
White
81
83
89
Hispanic 84
97
90
Black
46
43
64
Other
54
42
59
What can be concluded at the a = 0.01 significance level?
a. What is the correct statistical test to use?
Goodness-of-Fit
Independence
Homogeneity
Paired t-test
b. What are the null and alternative hypotheses?
Ho
H₁
Ethnicity and first exercise activity are dependent.
The distribution of first exercise activity is the same for each ethnicity.
The distribution of first exercise activity is not the same for each ethnicity.
Ethnicity and first exercise activity are independent.
Ethnicity and first exercise activity are independent.
The distribution of first exercise activity is not the same for each ethnicity.
Ethnicity and first exercise activity are dependent.
The distribution of first exercise activity is the same for each ethnicity.
c. The test-statistic for this data
d. The p-value for this sample
=
(Please show your answer to three decimal places.)
(Please show your answer to four decimal places.)
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