Explanation Given Information: The provided point and slope, ( − 5 , − 2 ) and m = 7 2 Graph: Consider the provided point and slope, ( − 5 , − 2 ) and m = 7 2 According to the definition of slope, Slope is, m = 7 2 The slope corresponds to, m = difference in y values difference in x values = 7 2 The point is ( − 5

12th Edition

ISBN: 9781337630580

Author: Dale Ewen

Publisher: Cengage Learning

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Chapter 8, Problem 38R

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To graph: The line with the help of point (−5,−2) and slope m=72.

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Chapter 8, Problem 37R

Chapter 8, Problem 39R

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3. (i) Below is the R code for performing a X2 test on a 2×3 matrix of categorical variables called TestMatrix: chisq.test(Test Matrix) (a) Assuming we have a significant result for this procedure, provide the R code (including any required packages) for an appropriate post hoc test. (b) If we were to apply this technique to a 2 × 2 case, how would we adapt the code in order to perform the correct test? (ii) What procedure can we use if we want to test for association when we have ordinal variables? What code do we use in R to do this? What package does this command belong to? (iii) The following code contains the initial steps for a scenario where we are looking to investigate the relationship between age and whether someone owns a car by using frequencies. There are two issues with the code - please state these. Row3<-c(75,15) Row4<-c(50,-10) MortgageMatrix<-matrix(c(Row1, Row4), byrow=T, nrow=2, MortgageMatrix dimnames=list(c("Yes", "No"), c("40 or older","<40")))…

Describe the situation in which Fisher’s exact test would be used?(ii) When do we use Yates’ continuity correction (with respect to contingencytables)?[2 Marks] 2. Investigate, checking the relevant assumptions, whether there is an associationbetween age group and home ownership based on the sample dataset for atown below:Home Owner: Yes NoUnder 40 39 12140 and over 181 59Calculate and evaluate the effect size.

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Chapter 8 Solutions

Elementary Technical Mathematics

Ch. 8.1 - Complete the three ordered-pair solutions of each...Ch. 8.1 - Complete the three ordered-pair solutions of each...Ch. 8.1 - Complete the three ordered-pair solutions of each...Ch. 8.1 - Prob. 4E Ch. 8.1 - Prob. 5E Ch. 8.1 - Complete the three ordered-pair solutions of each...Ch. 8.1 - Prob. 7E Ch. 8.1 - Prob. 8E Ch. 8.1 - Prob. 9E Ch. 8.1 - Prob. 10E

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To graph: The line with the help of point ( − 5 , − 2 ) and slope m = 7 2 .

Solution Summary: The author illustrates the graph of the line with the help of point (-5,-2)andm=72

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To graph: The line with the help of point (−5,−2) and slope m=72.

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Chapter 8 Solutions