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Construction costs in East LA is not cheap.  You want to build a simple cost estimator for construction costs, and you hope to find a useful linear relationship between cost (y) and floor space (x). You have data from a sample of four recently completed building projects: Relationship between floor space and construction costs Floor Space (000s of sq. ft.), x Construction Cost ($000s), y 20 48 35 64 25 80 40 96     Answer choices A. Since tstat is not outside the critical values of ±2.182, we can't reject the β=0 null hypothesis B. Since tstat is not outside the critical values of ±4.303, we can't reject the β=0 null hypothesis. C. Since tstat is outside the critical values of ±4.362, we can reject the β=0 null hypothesis. D. Since tstat is outside the critical values of ±3.182, we can reject the β=0 null hypothesis

Construction costs in East LA is not cheap.  You want to build a simple cost estimator for construction costs, and you hope to find a useful linear relationship between cost (y) and floor space (x). You have data from a sample of four recently completed building projects: Relationship between floor space and construction costs Floor Space (000s of sq. ft.), x Construction Cost ($000s), y 20 48 35 64 25 80 40 96     Answer choices A. Since tstat is not outside the critical values of ±2.182, we can't reject the β=0 null hypothesis B. Since tstat is not outside the critical values of ±4.303, we can't reject the β=0 null hypothesis. C. Since tstat is outside the critical values of ±4.362, we can reject the β=0 null hypothesis. D. Since tstat is outside the critical values of ±3.182, we can reject the β=0 null hypothesis

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
Problem 22EQ
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Construction costs in East LA is not cheap.  You want to build a simple cost estimator for construction costs, and you hope to find a useful linear relationship between cost (y) and floor space (x). You have data from a sample of four recently completed building projects:

Relationship between floor space and construction costs

Floor Space (000s of sq. ft.), x

Construction Cost ($000s), y

20

48

35

64

25

80

40

96
 
 
Answer choices
A. Since tstat is not outside the critical values of ±2.182, we can't reject the β=0 null hypothesis
B. Since tstat is not outside the critical values of ±4.303, we can't reject the β=0 null hypothesis.
C. Since tstat is outside the critical values of ±4.362, we can reject the β=0 null hypothesis.
D. Since tstat is outside the critical values of ±3.182, we can reject the β=0 null hypothesis
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