Explanation Given, The data table that shows the expenditure in dollars and corresponding test scores of top 10 school districts. Student class Rank Grade Teacher Rating 1 3.19 1.00 2 3.58 1.06 3 3.89 1.17 4 2.50 1.30 5 3.11 1.38 6 2.81 1.39 7 3.73 1.40 8 3.06 1.43 9 3.55 1.44 10 3.63 1.50 11 3.71 1.55 12 2.00 1.56 13 3.19 1.60 14 3.23 1.70 15 3.38 1.70 16 3.21 1.79 17 3.25 1.82 18 2.63 1.83 19 3.27 1.85 20 2.58 2.00 21 3.13 2.00 22 3.19 2.00 23 3.46 2.07 24 3.00 2.10 25 2.68 2.22 26 2.36 2.25 27 3.35 1.00 28 3.27 1.00 29 3.11 1.13 30 3.18 1.27 31 3.16 1.31 32 2.83 1.33 33 3.05 1.50 34 3.61 1.50 35 2.92 1.53 36 3.17 1.58 37 2.18 1.58 38 3.14 1.73 39 3.55 1.80 40 2.69 1.82 41 2.55 1.90 42 3.08 1.91 43 3.00 1.92 44 3.67 2.20 45 3.67 2.27 46 2.95 2.60 47 1.68 2.80 Calculation: Here, ‘ x ’ represents the expenditure and ‘ y ’ represents the score test. Now, let us make a table that shows ∑ x , ∑ y , ∑ x y , ∑ x 2 and ∑ y 2 for the given data values. x y x y x 2 y 2 3.19 1 3.19 10.1761 1 3.58 1.06 3.7948 12.8164 1.1236 3.89 1.17 4.5513 15.1321 1.3689 2.5 1.3 3.25 6.25 1.69 3.11 1.38 4.2918 9.6721 1.9044 2.81 1.39 3.9059 7.8961 1.9321 3.73 1.4 5.222 13.9129 1.96 3.06 1.43 4.3758 9.3636 2.0449 3.55 1.44 5.112 12.6025 2.0736 3.63 1.5 5.445 13.1769 2.25 3.71 1.55 5.7505 13.7641 2.4025 2 1.56 3.12 4 2.4336 3.19 1.6 5.104 10.1761 2.56 3.23 1.7 5.491 10.4329 2.89 3.38 1.7 5.746 11.4244 2.89 3.21 1.79 5.7459 10.3041 3.2041 3.25 1.82 5.915 10.5625 3.3124

13th Edition

ISBN: 9781285697734

Author: karl J. smith

Publisher: Cengage Learning US

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Chapter 14.4, Problem 59PS

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Whether correlation exist between expenditures and test scores of the top 10 schools districts also to find the correlation between the expenditure and the test score and also to determine whether it is significant at either the 5% or the 1% significant level.

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Chapter 14.4, Problem 58PS

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Whether correlation exist between expenditures and test scores of the top 10 schools districts also to find the correlation between the expenditure and the test score and also to determine whether it is significant at either the 5% or the 1% significant level.

Solution Summary: The author explains that a stick positive correlation exists between the expenditure and the test score of the top 10 schools districts.

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Whether correlation exist between expenditures and test scores of the top 10 schools districts also to find the correlation between the expenditure and the test score and also to determine whether it is significant at either the 5% or the 1% significant level.

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