1. From the output, what is the average percent of heavy drinkers in Obama states? What is the average percent of heavy drinkers in McCain states? 2. The test statistic is labeled “t” in the Independent Samples Test table. For now, we are going to use the “Equal Variances not assumed” row in this table. The calculated degrees of freedom is “df” in the table, and the p-value is labeled “Sig. (2-tailed). What are the test statistic, degrees of freedom, and the p-value?
1. From the output, what is the average percent of heavy drinkers in Obama states? What is the average percent of heavy drinkers in McCain states? 2. The test statistic is labeled “t” in the Independent Samples Test table. For now, we are going to use the “Equal Variances not assumed” row in this table. The calculated degrees of freedom is “df” in the table, and the p-value is labeled “Sig. (2-tailed). What are the test statistic, degrees of freedom, and the p-value?
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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Next, we will examine an entirely different question. Do the states that voted for McCain have a different average percent of heavy drinkers than the states that voted for Obama in the 2008 election.
1. From the output, what is the average percent of heavy drinkers in Obama states? What is the average percent of heavy drinkers in McCain states?
2. The test statistic is labeled “t” in the Independent Samples Test table. For now, we are going to use the “Equal Variances not assumed” row in this table. The calculated degrees of freedom is “df” in the table, and the p-value is labeled “Sig. (2-tailed). What are the test statistic, degrees of freedom, and the p-value?
![T-Test
[DataSet2] W:\syr\CourseInformation\MTH 112\dilmore\USstates.sav
Group Statistics
ObamaMcCain
N
Mean
Std. Deviation Std. Error Mean
HeavyDrinkers M
22
4.255
1.0060
.2145
28
5.446
1.1154
.2108
Independent Samples Test
Levene's Test for Equality of
t-test for Equality of
Means
Variances
F
Sig.
df
HeavyDrinkers Equal variances assumed
.045
.832
-3.914
48
Equal variances not
-3.963
47.031
assumed](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7fdf336d-4f09-474f-8885-c9f1cef645bf%2F54a776f6-716c-4fc8-a5d6-456b7eb028be%2Fepft5iy_processed.png&w=3840&q=75)
Transcribed Image Text:T-Test
[DataSet2] W:\syr\CourseInformation\MTH 112\dilmore\USstates.sav
Group Statistics
ObamaMcCain
N
Mean
Std. Deviation Std. Error Mean
HeavyDrinkers M
22
4.255
1.0060
.2145
28
5.446
1.1154
.2108
Independent Samples Test
Levene's Test for Equality of
t-test for Equality of
Means
Variances
F
Sig.
df
HeavyDrinkers Equal variances assumed
.045
.832
-3.914
48
Equal variances not
-3.963
47.031
assumed
![Independent Samples Test
t-test for Equality of Means
Mean
Std. Error
Sig. (2-tailed)
Difference
Difference
HeavyDrinkers Equal variances assumed
.000
-1.1919
.3045
Equal variances not
.000
-1.1919
.3007
assumed
Independent Samples Test
t-test for Equality of Means
95% Confidence Interval of the
Difference
Lower
Upper
HeavyDrinkers Equal variances assumed
-1.8042
-.5796
Equal variances not
-1.7969
-.5869
assumed](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7fdf336d-4f09-474f-8885-c9f1cef645bf%2F54a776f6-716c-4fc8-a5d6-456b7eb028be%2Fae4tcqd_processed.png&w=3840&q=75)
Transcribed Image Text:Independent Samples Test
t-test for Equality of Means
Mean
Std. Error
Sig. (2-tailed)
Difference
Difference
HeavyDrinkers Equal variances assumed
.000
-1.1919
.3045
Equal variances not
.000
-1.1919
.3007
assumed
Independent Samples Test
t-test for Equality of Means
95% Confidence Interval of the
Difference
Lower
Upper
HeavyDrinkers Equal variances assumed
-1.8042
-.5796
Equal variances not
-1.7969
-.5869
assumed
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