This is all one question and if mentions appendix 4.2 so I have prov.pdf

•

0 recomendaciones•2 vistas

This is all one question and if mentions appendix 4.2 so I have provided that as well. please help understandble but thats why im here...to get help 6.11 (Requires calculus) Consider the regression model Yi=1X1i+2X2i+ui for i=1,,n. (Notice that there is no constant term in the regression.) Following analysis like that used in Appendix 4.2: a. Specify the least squares function that is minimized by OLS. b. Compute the partial derivatives of the objective function with respect to b1 and b2. c. Suppose that i=1nX1iX2i=0. Show that ^1=i=1nX1iYi/i=1nX1i2. d. Suppose that i=1nX1iX2i=0. Derive an expression for ^1 as a function of the data (Yi,X1i,X2i),i=1,,n. e. Suppose that the model includes an intercept: Yi=0+1X1i+2X2i+ui. Show that the least squares estimators satisfy ^0=Y^1X1^2X2. f. As in (e), suppose that the model contains an intercept. Also suppose that i=1n(X1iX1)(X2iX2)=0. Show that ^1=i=1n(X1iX1)(YiY)/i=1n(X1iX1)2. How does this compare to the OLS estimator of 1 from the regression that omits X2 ? This appendix uses calculus to derive the formulas for the OLS estimators given in Key Concept 4.2. To minimize the sum of squared prediction mistakes i=1n(Yib0b1Xj)2 [Equation (4.4)], first take the partial derivatives with respect to b0 and b1 : b0i=1n(Yib0b1Xi)2=2i=1n(Yib0b1Xi)andb1i=1n(Yib0b1Xi)2=2i=1n(Yib0b1Xi)Xi The OLS estimators, ^0 and ^1, are the values of b0 and b1 that minimize i=1n(YiIb0b1Xi)2 or, equivalently, the values of b0 and b1, for which the derivatives in Equations (4.21) and (4.22) equal 0 . Accordingly, setting these derivatives equal to 0 , collecting terms, and dividing by n shows that the OLS estimators, ^0 and ^1, must satisfy the two equations Y^0^1X=0andn1i=1nXiYi^0X^1n1i=1nXi2=0 Sampling Distribution of the OLS Estimator 131 Solving this pair of equations for ^0 and ^1 yields ^1=n1i=1nXi2(X)2n1i=1nXiYiXY=i=1n(XiX)2i=1n(XiX)(YiY)^0=Y^1X. Equations (4.25) and (4.26) are the formulas for ^0 and ^1 given in Key Concept 4.2; the formula ^1=sXY/sX2 is obtained by dividing the numerator and denomin tor in Equation (4.25) by n1..

Educación

Más contenido relacionado

To examine the potential effects on the transmission of dengue, Bian.pdf

ambikacomputer4301

To create a 2D graphics scene using the HTML canvas element. The idea and details of this scene are left up to you but must consist of different colors and2D shapes. You must make sure you to meet the following requirement: Define JavaScript variables and constants (using let and const) Use more than one conditional structure (if/else; ...) Use more than one loop (for, while, do/while) Define and call functions Make your scene interactive by having at least two components controlled using a form.

To create a 2D graphics scene using the HTML canvas element. The ide.pdf

ambikacomputer4301

To complete this discussion, please base your work on Enron, WorldCom, or another white collar crime story of your choosing. 1. Name the company you selected and briefly summarize the crime. 2. Do you think that the CEOs and other corporate officers involved were justly held criminally responsible or not? Explain your perspective. 3. Do you believe that business can regulate itself to act ethically, or is government oversight a necessity to protect the public from financial wrongdoing? Explain your position..

To complete this discussion, please base your work on Enron, WorldCo.pdf

ambikacomputer4301

Title: Is it a Planned Show Mrs. Jancy works with TBL global services, IT project management company, in the HR department. Jancy is known for her involvement not only in her duties but also in other various activities of the department. She was aware of many minute details about the department throughout her tenure. Hence she becomes a point of contact for any such information which often consumes her time. She is loaded with responsibilities very often, sometimes given to her and sometimes taken by her. In the beginning, she was happy with her profile and gave her the best in all the responsibilities with her. When years pass and she gets elevated to higher responsibilities she becomes overloaded. Still, she was happy with her job. One fine day suddenly, she realized that many of her colleagues complete their work on time and also equally take care of their personal life. On the other hand, Jancy, having been loaded with responsibilities completed it partially at work and partially during her personal time. This becomes a reason for her stress. She started questioning her ability to not being able to complete her work at the scheduled time. Later, she understood that apart from given responsibility she was involved in many other crucial activities of the department which becomes her additional responsibility which slowly the people forget that it is not under her job profile. Jancy Being highly disturbed started feeling her job as a burden. She thought she cant come out of this because the habit which she developed for herself and her coworkers is irreversible. So she finally decided to take a break from her job. She fixed an appointment with the head HR, Mr. Ratan, for her resignation, He knows the fact that her involvement is irreplaceable and he also knew that she can be his competitor in a very short period, so, he had some other plans for her. During the conversation, Ratan understood that Jancy is highly stubborn in leaving the job. So he convinced her to do work from home and advised her to limit her responsibilities as she will not come in any direct contact with the employees. Jancy happily accepted the option and she felt relaxed. At the same time, Mr. Ratan was reporting to CEO Mr. Vedant Sir, I didnt accept the resignation. I have given Jancy the option of work from home and she accepted to continue the job. Mr. Vedant asked but Ratan how did you made her accept this offer. And why you have given this option. As per her colleagues, her nature of doing the job is a key component. Mr. Ratan with a smile replied. Sir I advised her to limit her responsibilities to her profile by opting for work from home. She accepted the offer. And I am very sure that her very nature of involvement will not allow her to restrict her responsibility even after opting for work from home. So I am not going to lose the benefit of her involvement. Mr. Vedant was worried by the last words of Ratan, he thought.How I am going to execute my plan of replacing.

Title Is it a Planned ShowMrs. Jancy works with TBL global servic.pdf

ambikacomputer4301

This assignment is using Logism to create circuits. I have been trying to get this assignment done for a while for I am behind because of other coursework. If you answer the question, please make sure to read all the small details very clearly, as one small error will cause the assignment to be incorrect. I will have my own solution to the problem and will check with yours! Thank you for your help in advance. Description - This assignment aims at becoming familiar with Logisim and how to use basic circuit schematic elements. The goal of this assignment is to create a small and simple circuit that will convert three 4-bit binary numbers to a hexadecimal value each. Tasks - This assignment will have two circuits: A main circuit that will include 3 hex digit displays and inputs that allow the user to input a total of 12 bits. The second circuit is a so called subcircuit, which will be used in the main circuit and will connect the inputs to the hex displays. This subcircuit will route each bit from the inputs to the correct hex display using splitters. In Logisim, create a new file, add a subcircuit called "Converter", open it and do the following: To control the first hex digit display: Add 4 inputs with a bit width of 1 Add 1 output with a bit width of 4 Add a splitter with 4 fan outs and a bit width of 4 Connect the four 1-bit circuit inputs to the splitter fan out For each of the four inputs: Set the "Label" property to the letter "i" and append the number of the splitter fan out it is connected to (should be a number between 0 and 3). Connect the splitter output to the 4-bit output of the circuit Add the label "hex 1" to the output To control the second hex digit display: Add 2 inputs one with a bit width of 1 and the other with a bit width of 3 Add 1 output with a bit width of 4 Add a splitter with 2 fan outs and a bit width of 4 In order to make the splitter take in a group of 3 bits on one fan out and 1 bit on the second, we need to change the properties: Make sure the splitter has one fan out for bits 0, 1 and 2 (3-bit bus) and bit 3 on a separate fan out (1-bit wire). Connect the two inputs (1 bit input and 3 bit input) to the splitter fan out Connect the splitter output to the second 4-bit output of the circuit For each of the two inputs: Set the "Label" property to the letter "j" and append the number of the splitter fan out it is connected to (should be the two numbers 3 and 2,1,0, make sure the label reflects the bit position correctly) Add the label "hex 2" to the output To control the third hex digit display: Add 2 inputs with a bit width of 2 Add 1 output with a bit width of 4 Add a splitter with 2 fan outs and a bit width of 4 Connect the two 2-bit circuit inputs to the splitter fan out Connect the splitter output to the third 4-bit output of the circuit For each of the two inputs: Set the "Label" property to the letter "k" and append the bit numbers of the splitter fan out it is connected to (should be the two numbers 3,2 and 1.

This assignment is using Logism to create circuits. I have been tryi.pdf

ambikacomputer4301

Tide is conducting market research to assess a new detergent they're considering. As part of their research, Tide assembled focus groups and conducted personal interviews to collect data. Based on feedback and analysis from the focus groups and interviews, Tide brought the new detergent to market. Unfortunately, the new detergent was a failure and had to be pulled from shelves because it didn't generate enough sales. What are some issues in the data collection process the could've led to the product's failure?.

Tide is conducting market research to assess a new detergent theyre.pdf

ambikacomputer4301

Throughout the course project, your persona is that of a data analyst at MediCrystals, Co. For Part 1, your task is to read the paper Building the Supply Chain for COVID-19 Vaccines and put together an executive summary and PowerPoint presentation for your CEO. Requirements Write an executive summary (3 pages, single-spaced). Create a PowerPoint Presentation summarizing key points and significant outcomes (10 slides). Review the Grading Rubric below.. Reference Fisher, M., Kharenko, K.,.

Throughout the course project, your persona is that of a data analys.pdf

ambikacomputer4301

Three students, Habib, Vikki and Claire, in Bio 200 ran their samples of HindIII cut plasmid DNA side by side on the same gel and got the results shown below. Habibs bands are not as bright as Claires and Vikki has no DNA. Their lab instructor has asked them to consider where in the mini-prep procedure Habib and Vikki may have gone wrong. From the list of mistakes below, choose one mistake that could account for Habibs results and one mistake that could account for Vikkis results. Explain why they would lead to less bright bands for Habib and no DNA for Vikki. Using 1.5 ml of E.coli instead of 3 ml Not adding lysis buffer Washing with PE first and then PB Not adding enough HIndIII Not adding enough SyberSafe Vortexing their tubes when they werent supposed to Transferring the white pellet to the filter cartridge Habib Carly Vikki.

Three students, Habib, Vikki and Claire, in Bio 200 ran their sample.pdf

ambikacomputer4301

Más de ambikacomputer4301 (20)

This is neuroscience course (masters) 1. What percent.pdf

this is my project charter..i want to prepare WBS level upto 4 lev.pdf

this is all of the information that I have please help Lab 5 In.pdf

This is a question from AI check if it is correct In which of the .pdf

This is a project management course topic . please help me A proje.pdf

This is Canadian Accounting Nova Gold Miners (NGM) is a gold mining.pdf

This is for Object oriented and analysis thank youConsider a syste.pdf

This application is used to keep track of inventory information. A c.pdf

Todas las siguientes afirmaciones describen correctamente alguna par.pdf

Todas las siguientes afirmaciones describen con precisi�n una comuni.pdf

To what extent do you believe that social media is or is not ubiquit.pdf

This data shows the relation between Tucson and Phoenixs airports a.pdf