# Least squares

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Keywords: Equity, Standardized Assessment, Evaluation Paper Description: This quantitative study uses a least-squares regression model to determine the predictive power of socio-economic factors on district-level student achievement on new, Common Core-aligned standardized assessments. We posit that educators may use our methodology and model to control for socio-economic factors, and more equitably compare school district performance. Purpose We used a least-squares regression model to determine the predictive power of socio-economic status (SES) on student achievement on Common Core-aligned standardized assessments in the State of Connecticut. The purpose of this case study is to: 1) Determine extent to which SES explains the differences…

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The emphasis is given to the Least Squares Method repeatedly used in forecasting. The magic is in testing for a relationship between scale variables plus not knowing the strength of the association, but rather the ability to predict (Mirabella, 2011). Predicted Y = a +bX. The data viewing of the BS GPA vs. MBA GPA one sees MBA GPA = -0.057+0.987. One can make an educated statement, if a BS student has a 3.50 GPA, then the MBA GPA is predicted to be 3.397 with a marginal error of 0.233.…

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Performance Evaluation In order to assess the model accuracy, it is necessary to use some quantitative measures of learning. In this study the Mean Squared Error (MSE) and regression analysis were used to evaluate the model performance. MSE is a useful measure of success for numeric prediction and is calculated using Eq. (1). It is worth mentioning that small values of MSE indicate better performance of the ANN model. It was found that the optimum performance of the model is at 25 neurons with…

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exit their schools. To answer the second research question, the data will be tested using the multiple linear regression to depict the level of significance of the relationship between each independent variable and teacher retention decisions. This will allow me to uncover which working conditions have more or less impact on teacher retention plans. Multiple linear regression is used when both the independent and dependent variables are continuous. The independent variables are measured with…

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We wanted to show our employees how competitive we were compare to the medium and larger companies we chose for the survey. This allowed to have a good fit for our regression line. We were able to achieve an R square value of .845. The closer to one the R squared value is, the truer the match of the FastCat jobs with the benchmark jobs. The R squared value shows that our comparisons were accurate and our job evaluation points are mostly in line with the market average. Our pay level is very…

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Introduction What is innovation? A using of new ideas to products, processes and other aspects of a firm activities lead to an increasing in value of the firm, benefits to customers or other enterprise, this situation is called innovation. A key issue to distinguish innovation, bringing a truly novel item that is produced by new techniques and designs into market; this item can be new to the firm, new to relevant market. Moreover, whether relevant market is domestic or global market is based…

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Over the course of the semester I have been volunteering with American Public Square. I have completed around eleven hours so far and have been helping at events hosted by the group. At events I have helped attendants find seats, passed out programs, collected questions from the audience, tracked demographics, and cleaned up once attendees have left. While my acts have seemed small to me, those putting on the programs have said these little things amount to a large burden off their shoulders.…

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block that you can sew on the front of a pillow. It’s lovely, and it’s a relatively simple pattern to make – so you can still do this in time for Valentine’s Day. To do this project, you will need: •three fabrics of your choice, which we’ll refer to as Fabric 1, Fabric 2, and Fabric 3 •cutting mat (I use a combination cutting mat and ironing board to streamline the entire process) •iron •fabric scissors •rotary cutter •quilting thread Step One: Cut the three fabrics – these are the…

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Communal Areas Cleaning London Do you own a large commercial property, student property, flat share or office block? If you do, then you will have to address cleaning communal areas. The reason is because you must provide residents or visitors to such property with healthy living conditions that stand up to certain standards. You could try and take on such task on your own, but odds are it will be too large a job. By outsourcing the job to a communal areas cleaning company, you can take the…

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Before the man even looked at him, he climbed onto the stage and began writing on the stone. “Can I clear a few things up?” he said. “The book, the title is written in Akkadian. It says, On Triangles, written by Sudines. And the spell? It’s a theorem that can find the length of the hypotenuse of any right triangle. It’s amazing, but it’s not witchcraft.” Using the chalk he sketched out two square frames, each filled with different shapes. “The square frames are equal in size, but there are…

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