What is the degrees of freedom of the problem that we will use to look onto the t-table?
What is the degrees of freedom of the problem that we will use to look onto the t-table?
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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An investigator predicts that dog owners in the country spend more time walking their dogs
than do dog owners in the city. The investigator gets a sample of 21 country owners and 23 city
owners. The mean number of hours per week that city owners spend walking their dogs is 10.0.
The standard deviation of hours spent walking the dog by city owners is 3.0. The mean number
of hours country owners spent walking their dogs per week was 15.0. The standard deviation of
the number of hours spent walking the dog by owners in the country was 4.0. With confidence
level of 95% (level of significance of 5%), do dog owners in the country spend more time walking
their dogs than dog owners in the city?
What is the degrees of;freedom of the problem that we will use to look onto the t-table?
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