A researcher wants to know whether people who own dogs are less likely to visit their doctor. A sample of dog owners is compared to a similar group of people (matched for age and health) who are not dog owners. The researcher records the number of visits to the doctor during the past two years for each person. The data is analyzed using SPSS and the following output is obtained: Group Statistics Dog Ownership Std. Deviation Std. Error Mean Mean doctor_visits no dog 8. 7.8750 2.47487 .87500 dog owner 8 4.3750 2.38672 .84383
A researcher wants to know whether people who own dogs are less likely to visit their doctor. A sample of dog owners is compared to a similar group of people (matched for age and health) who are not dog owners. The researcher records the number of visits to the doctor during the past two years for each person. The data is analyzed using SPSS and the following output is obtained: Group Statistics Dog Ownership Std. Deviation Std. Error Mean Mean doctor_visits no dog 8. 7.8750 2.47487 .87500 dog owner 8 4.3750 2.38672 .84383
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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Topic Video
Question
What is the t-value rounded to two decimals?
What is your df?
What is your p-value?
What do you conclude? Are people significantly less likely to visit the doctor when they own dogs?
![Independent t-test
A researcher wants to know whether
people who own dogs are less likely to
visit their doctor. A sample of dog owners
is compared to a similar group
(matched for age and health) who are not
of people
dog owners. The researcher records the
number of visits to the doctor during the
past two years for each person. The data
is analyzed using SPSS and the following
output is obtained:
Group Statistics
Std.
Deviation
Std. Error
Mean
Dog_Ownership
N
Mean
doctor_visits no dog
8
7.8750
2.47487
.87500
dog owner
8 4.3750
2.38672
.84383
Independent Samples Test
Lavene's Test for Equality of
Varances
la for tquality of Muan
OSN Confde tervalo
he Dierence
Mean
Dierene
Derence
Loer
Upper
doctvis teal vartances
aumed
L000
14
L10000
Equal variances not
asumed
2.479 13.982
012
1.0000
12140
6.10752](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8cc2c205-f8b7-45c3-949b-dd290aec15ed%2F1a09800a-c44b-4c30-90e0-f7cbd0ecc6e7%2Fmbyfplej_processed.png&w=3840&q=75)
Transcribed Image Text:Independent t-test
A researcher wants to know whether
people who own dogs are less likely to
visit their doctor. A sample of dog owners
is compared to a similar group
(matched for age and health) who are not
of people
dog owners. The researcher records the
number of visits to the doctor during the
past two years for each person. The data
is analyzed using SPSS and the following
output is obtained:
Group Statistics
Std.
Deviation
Std. Error
Mean
Dog_Ownership
N
Mean
doctor_visits no dog
8
7.8750
2.47487
.87500
dog owner
8 4.3750
2.38672
.84383
Independent Samples Test
Lavene's Test for Equality of
Varances
la for tquality of Muan
OSN Confde tervalo
he Dierence
Mean
Dierene
Derence
Loer
Upper
doctvis teal vartances
aumed
L000
14
L10000
Equal variances not
asumed
2.479 13.982
012
1.0000
12140
6.10752
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