Understandable Statistics: Concepts And Methods
12th Edition
ISBN: 9781337517508
Author: Charles Henry Brase, Corrinne Pellillo Brase
Publisher: Cengage Learning
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Chapter 11, Problem 6CURP
(a)
To determine
Construct the ranks for a
(b)
To determine
Check whether a monotone relation between ranks of lab A and lab B or not.
Interpret the results.
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What is the Fratio for these data?
an attempt to develop a model of wine quality as judged by wine experts, data on alcohol content and wine quality was collected from variants of a particular wine. From a sample of 12wines, a model was created using the percentages of alcohol to predict wine quality. For those data, SR=18,671 and SST=27,382.Use this information to complete parts (a) through (c) below. Please complete part 3(B) ONLY.
Question content area bottom
Part 1
a. Determine the coefficient of determination,
r2,
and interpret its meaning.
r2=0.682
(Round to three decimal places as needed.)
Part 2
Interpret the meaning of r2.
It means that
68.2
of the variation in
wine quality
can be explained by the variation in
alcohol content.
(Round to one decimal place as needed.)
Part 3
b. Determine the standard error of the estimate.
SYX=
(Round to four decimal places as needed.)
Foot ulcers are a common problem for people with diabetes. Higher skin temperatures on
the foot indicate an increased risk of ulcers. The article "An Intelligent Insole for Diabetic
Patients with the Loss of Protective Sensation" (Kimberly Anderson, M.S. Thesis, Colorado
School of Mines), reports measurements of temperatures, in °F, of both feet for 181
diabetic patients. The results are presented in the following table.
Left Foot
Right Foot
80
80
85
85
75
80
88
86
89
87
87
82
78
78
88
89
89
90
76
81
89
86
87
82
78
78
80
81
87
82
86
85
76
80
88
89
Construct a scatterplot of the right foot temperature (y) versus the left foot temperature
(x). Verify that a linear model is appropriate.
b.
Compute the least-squares line for predicting the right foot temperature from the left
foot temperature.
If the left foot temperatures of two patients differ by 2 degrees, by how much would
you predict their right foot temperatures to differ?
Predict the right foot temperature for a patient whose left…
Chapter 11 Solutions
Understandable Statistics: Concepts And Methods
Ch. 11.1 - Statistical Literacy To apply the sign test, do...Ch. 11.1 - Prob. 2PCh. 11.1 - Economic Growth: Asia Asian economies impact some...Ch. 11.1 - Debt: Developing Countries Borrowing money may be...Ch. 11.1 - Education: Exams A high school science teacher...Ch. 11.1 - Prob. 6PCh. 11.1 - Prob. 7PCh. 11.1 - Prob. 8PCh. 11.1 - Prob. 9PCh. 11.1 - Prob. 10P
Ch. 11.1 - Prob. 11PCh. 11.1 - Prob. 12PCh. 11.2 - Prob. 1PCh. 11.2 - Prob. 2PCh. 11.2 - Prob. 3PCh. 11.2 - Prob. 4PCh. 11.2 - Prob. 5PCh. 11.2 - Prob. 6PCh. 11.2 - Prob. 7PCh. 11.2 - Prob. 8PCh. 11.2 - Prob. 9PCh. 11.2 - Prob. 10PCh. 11.2 - Prob. 11PCh. 11.3 - Prob. 1PCh. 11.3 - Statistical Literacy Consider the Spearman rank...Ch. 11.3 - Prob. 4PCh. 11.3 - Prob. 5PCh. 11.3 - Prob. 6PCh. 11.3 - Prob. 7PCh. 11.3 - Prob. 8PCh. 11.3 - Prob. 9PCh. 11.3 - Prob. 10PCh. 11.3 - Prob. 11PCh. 11.4 - Prob. 1PCh. 11.4 - Prob. 2PCh. 11.4 - Prob. 3PCh. 11.4 - Prob. 4PCh. 11.4 - Prob. 5PCh. 11.4 - Prob. 6PCh. 11.4 - Prob. 7PCh. 11.4 - Prob. 8PCh. 11.4 - Prob. 9PCh. 11.4 - Prob. 10PCh. 11.4 - Prob. 11PCh. 11.4 - Prob. 12PCh. 11 - Prob. 1CRPCh. 11 - Prob. 2CRPCh. 11 - Prob. 3CRPCh. 11 - Prob. 4CRPCh. 11 - Prob. 5CRPCh. 11 - Prob. 6CRPCh. 11 - Prob. 7CRPCh. 11 - Prob. 8CRPCh. 11 - Prob. 9CRPCh. 11 - Prob. 10CRPCh. 11 - Prob. 1CURPCh. 11 - Prob. 2CURPCh. 11 - Prob. 3CURPCh. 11 - Prob. 4CURPCh. 11 - Prob. 5CURPCh. 11 - Prob. 6CURPCh. 11 - Prob. 7CURP
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