INTERPRETING STATISTICAL TESTS 1. Below are the results of at-test comparing the (totally made up) mean income for those with a college degree verse those without a college degree. Answer the following questions based on the information in these results. Mean income - WITH college degree: Mean income- WITHOUT college degree: $63,500 $41,800 tvalue 12.82 pvalue (significance): A. What is the null hypothesis concerning these variables (education and income)? pr.003 8. Based on the p-value (significance) from these results, can you reject the null hypothesis? C. What do these results tell us about the relationship between the two means (be specific about what THIS test tells us-Le, what does attest actuallv.do?)
INTERPRETING STATISTICAL TESTS 1. Below are the results of at-test comparing the (totally made up) mean income for those with a college degree verse those without a college degree. Answer the following questions based on the information in these results. Mean income - WITH college degree: Mean income- WITHOUT college degree: $63,500 $41,800 tvalue 12.82 pvalue (significance): A. What is the null hypothesis concerning these variables (education and income)? pr.003 8. Based on the p-value (significance) from these results, can you reject the null hypothesis? C. What do these results tell us about the relationship between the two means (be specific about what THIS test tells us-Le, what does attest actuallv.do?)
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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INTERPRETING STATISTICAL TESTS
Ever read a horoscope or Personal astrology report Astrology is scientific
Crosstabulation
1. Below are the results of a t-test comparing the (totally made up) mean income for those with
% within Astrology is scientific
a college degree verse those without a college degree. Answer the following questions based
on the information in these results.
Astrology is scientific
Sort of
scientific
Very scientific
scientific
Total
Mean income - WITH college degree:
$63,500
Ever read a horoscope or
Personal astrology report
Yes
63.6%
58.7%
33.4%
44.0%
36.4%
41.3%
66.6%
56.0%
Mean income – WITHOUT college degree:
$41,800
Total
100.0%
100.0%
100.0%
100.0%
t-value:
12.82
Chi-Square Tests
p-value (significance):
p=.003
Asymptotic
Significance
(2-sided)
Value
df
A. What is the null hypothesis concerning these variables (education and income)?
Pearson Chi-Square
76.636*
2
000
Likelihood Ratio
77.050
000
Linear-by-Linear
Association
69.776
000
Nof Valid Cases
1139
B. Based on thep-value (significance) from these results, can you reject the null hypothesis?
A. What is the null hypothesis concerning these variables?
C. What do these results tell us about the relationship between the two means (be specific about
what THIS test tells us – i.e., what does a t-test actually do?)
B. Based on the p-value (significance) from these results, can you reject the null hypothesis?
2. Below are the results of a Chi-Square test using the variables "believing astrology is scientific"
(the independent variable) and having "ever read a horoscope or persona astrology report"
(the dependent variable). Answer the following questions based on the information in these
C. What do these results tell us about the relationship between the two variables (be specific
about what THIS test tells us – i.e., what does a chi-square test actually do?)
results,
3. From the results below, what test of association would be best to use with these two
variables? List it here and why you chose it as the best measure of association (hint: refer to
your Magic Chart):
4. For whichever measure of association you selected, can we say there is an association in the
population between these two variables? What is the evidence for your answer?
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