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 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 N. Mean doctor_visits no dog 8 7.8750 2.47487 .87500 dog owner 8 4.3750 2.38672 .84383 Independent Samples Test Levene's Test for toalty of Variances Hest for tquaity of Means 9SK Confidence teralof the Difference Sig 2- taled) Mean Difference S. Erar Difference Sig df Lower Upper Equal variances assumed 3.50000 doctor vits 000 1.000 2.879 14 012 121s00 89240 6.10720 Equal varances net assumed 2.879 11.982 012 3.50000 121560 6.10752
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 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 N. Mean doctor_visits no dog 8 7.8750 2.47487 .87500 dog owner 8 4.3750 2.38672 .84383 Independent Samples Test Levene's Test for toalty of Variances Hest for tquaity of Means 9SK Confidence teralof the Difference Sig 2- taled) Mean Difference S. Erar Difference Sig df Lower Upper Equal variances assumed 3.50000 doctor vits 000 1.000 2.879 14 012 121s00 89240 6.10720 Equal varances net assumed 2.879 11.982 012 3.50000 121560 6.10752
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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