Understandable Statistics: Concepts And Methods
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 Spearman rank correlation test.

(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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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 12​wines, 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.)
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Understandable Statistics: Concepts And Methods

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