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4. A company has recorded data on the daily demand for its product (y in thousands of units) and the unit price (x in hundreds of dollars). A sample of 15 days demand and associated prices resulted in the following data. Ex=75 Ex²=469 Ey=135 Ey² = 1315 e. Compute the standard error of the estimate. Σxy=616 f. Compute the estimated standard deviation of b₁. g. Use the t test to test the following hypothesis B₁ = 0 at a = .05. What is your conclusion?

4. A company has recorded data on the daily demand for its product (y in thousands of units) and the unit price (x in hundreds of dollars). A sample of 15 days demand and associated prices resulted in the following data. Ex=75 Ex²=469 Ey=135 Ey² = 1315 e. Compute the standard error of the estimate. Σxy=616 f. Compute the estimated standard deviation of b₁. g. Use the t test to test the following hypothesis B₁ = 0 at a = .05. What is your conclusion?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please do & explain with steps: Subparts e f & g please & thank u
4. A company has recorded data on the daily demand for its product (y in thousands of units) and the unit price (x in hundreds of dollars). A sample of 15 days demand and associated prices resulted in the following data. Ex=75 Ex² = 469 Ey=135 Ey² = 1315 Σxy=616 e. Compute the standard error of the estimate. f. Compute the estimated standard deviation of b₁. g. Use the t test to test the following hypothesis ß₁ = 0 at a = .05. What is your conclusion?
Transcribed Image Text:4. A company has recorded data on the daily demand for its product (y in thousands of units) and the unit price (x in hundreds of dollars). A sample of 15 days demand and associated prices resulted in the following data. Ex=75 Ex² = 469 Ey=135 Ey² = 1315 Σxy=616 e. Compute the standard error of the estimate. f. Compute the estimated standard deviation of b₁. g. Use the t test to test the following hypothesis ß₁ = 0 at a = .05. What is your conclusion?
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