Concept explainers
(a)
To find: The predicted difference between the cost of dogs and cats medically is to be identified.
(a)
Answer to Problem 38E
$20
Explanation of Solution
Given:
Suppose X is the annual expense of medical care for dogs,
Suppose Y is the annual expense of medical care for cats.
Formula used:
Calculation:
Calculated the expected difference.
Expected difference in cost is $20
(b)
To find: the standard deviation of difference.
(b)
Answer to Problem 38E
$46.10
Explanation of Solution
Given:
Suppose X is the annual expense of medical care for dogs,
Suppose Y is the annual expense of medical care for cats.
Formula used:
Calculation:
Finding the variance of difference.
Standard deviation of difference = $46.10
(c)
To find: the possibility of medical costs.
(c)
Answer to Problem 38E
0.3321
Explanation of Solution
Given:
Suppose X is the annual expense of medical care for dogs,
Suppose Y is the annual expense of medical care for cats.
Calculation:
Cost of difference is normal model
For the required probability
(d)
To find: the concerns which have.
(d)
Explanation of Solution
Given:
Suppose X is the annual expense of medical care for dogs,
Suppose Y is the annual expense of medical care for cats.
The cost for dog should be not dependent of expense cat.
Chapter 16 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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