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y (x – x)² y -y (x – X)(y – F) 6. 3 3 1 4 Ey, = E(x, – x) E(x, – x)² = E(y, - y) = E(x; – x)(y, – y) = %3D (a) Complete the entries in the table. Put the sums in the last row. What are the sample means F and y? (b) Calculate bị and bz using (2.7) and (2.8) and state their interpretation. (c) Compute Ex, E1xiyi. Using these numerical values, show that E(xi – x)° = Ex – N and (x- x)(y – 5) = Exyi – Nay (d) Use the least squares estimates from part (b) to compute the fitted values of y, and complete the remainder of the table below. Put the sums in the last row.

y (x – x)² y -y (x – X)(y – F) 6. 3 3 1 4 Ey, = E(x, – x) E(x, – x)² = E(y, - y) = E(x; – x)(y, – y) = %3D (a) Complete the entries in the table. Put the sums in the last row. What are the sample means F and y? (b) Calculate bị and bz using (2.7) and (2.8) and state their interpretation. (c) Compute Ex, E1xiyi. Using these numerical values, show that E(xi – x)° = Ex – N and (x- x)(y – 5) = Exyi – Nay (d) Use the least squares estimates from part (b) to compute the fitted values of y, and complete the remainder of the table below. Put the sums in the last row.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.5: Graphs Of Functions
Problem 50E
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Please help me mu econ homework. My time is up. Please help .

 

(x – 3)? y - y (x – X)(y – ) y 1 3 3 4 E(x; – x) = E(x; – x)² = E(y, – y) = {(x; – x)(y, – y) = (a) Complete the entries in the table. Put the sums in the last row. What are the sample means F and ỹ? (b) Calculate bị and b, using (2.7) and (2.8) and state their interpretation. (c) Compute E1x}, £1xyi. Using these numerical values, show that E(xi – x)° = Ex? – N and E(x – x)(y; – 5) = Exyi – Nay (d) Use the least squares estimates from part (b) to compute the fitted values of y, and complete the remainder of the table below. Put the sums in the last row.
Transcribed Image Text:(x – 3)? y - y (x – X)(y – ) y 1 3 3 4 E(x; – x) = E(x; – x)² = E(y, – y) = {(x; – x)(y, – y) = (a) Complete the entries in the table. Put the sums in the last row. What are the sample means F and ỹ? (b) Calculate bị and b, using (2.7) and (2.8) and state their interpretation. (c) Compute E1x}, £1xyi. Using these numerical values, show that E(xi – x)° = Ex? – N and E(x – x)(y; – 5) = Exyi – Nay (d) Use the least squares estimates from part (b) to compute the fitted values of y, and complete the remainder of the table below. Put the sums in the last row.
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