How much of the variation in mean cost of hospital stay is explained by the least-squares regression line? Round the answer to at least one decimal place.
How much of the variation in mean cost of hospital stay is explained by the least-squares regression line? Round the answer to at least one decimal place.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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How much of the variation in mean cost of hospital stay is explained by the least-squares regression line? Round the
answer to at least one decimal place.
Transcribed Image Text:(b) How much of the variation in mean cost of hospital stay is explained by the least-squares regression line? Round the
answer to at least one decimal place.
The percentage of variation in mean cost of hospital stay that is explained by the least-
%.
squares regresslon line Is
Transcribed Image Text:Cost of health care: The following table presents the mean cost of a hospital stay, in $1000s, and the number of hospital stays,
in millions, in the United States for each of 10 years.
Cost
Number
Cost
Number
10.3
34.1
13.7
36.4
10.3
34.2
15.0
37.2
11.3
34.7
19.7
38.2
11.8
· 34.9
20.5
38.7
12.5
35.5
22.3
39.2
Source: Agency for Healthcare Research and Quality
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