1 ) The sum of the digits of a two-digit number is 7. When the digits are reversed‚ the number is increased by 27. Find the number. 2 ) A passenger jet took three hours to fly 1800 miles in the direction of the jetstream. The return trip against the jetstream took four hours. What was the jet’s speed in still air and the jetstream’s speed? 3 ) These circles are identical. What is the value of x ? 4 ) Solve for x using these two equations: 2x + 6 = y; y - x = 2 5 ) The perimeter and the
Premium Length Arithmetic Real number
CWRU Regression Project Report OPRE 433 Tianao Zhang 12/5/2011 Introduction According to the data I’ve received‚ there are 6578 observations. The data base is composed by 13 columns and 506 rows. All the explanatory variables are continuous as well as the dependent variable and there are no categorical variables. My goal is to build a regression model to predict the average of Y or particular Y by a given X. 1. Do the regression assumptions such as Constant Variance‚ Normality and Independence
Premium Regression analysis
Summary This research provides statistical analysis for gross monthly sales in 60 stores using five key measures within a 10km vicinity: number of competitors‚ population in ‘000’s‚ average population income‚ average number of cars owned by households‚ and median age of dwellings. These quantitative variables are the key determinants‚ which will provide substance for descriptive statistics and the multiple linear regression model. This research reports mainly on statistical analysis‚ providing a direct
Premium Regression analysis Statistics Standard deviation
Regression Analysis of Army Jackboots Ochirmunkh Boldbaatar‚ Myriam Hirscher‚ Bastian Latz‚ and Manuel Padutsch ECON 510 Aun Hassan November 26‚ 2012 Introduction The German company we established the data from sells cloths and shoes. The customers are not private customers but mostly national divisions like the military or fire departments. The company has around 20 stores in Germany; however‚ the stores have different prices for the same products. The data package we received includes
Premium Supply and demand Profit maximization Regression analysis
Phoenix Computer 1. The incremental salary and training cost associated with hiring a new employee and training him/her to be laptop specialist. * Annual salary for new employee = $27‚000 * Cost for three month training program = $1‚500 per person * New employee undergoes three month training $27‚000/12 = $2‚250 $2‚250*3 months = $6‚750 $6‚750 + $1‚500 =$8‚250 per person The incremental salary and training cost associated with hiring a new employee and training
Premium Costs The Current Salary
Time Series Regression 3.1 A small regional trucking company has experienced steady growth. Use time series regression to forecast capital needs for the next 2 years. The company’s recent capital needs have been: ══════════════════════════════════════════════ Capital Needs Capital Needs (Thousands Of (Thousands Of Year Dollars) Year Dollars) -------------------------------------------
Premium Errors and residuals in statistics Forecasting Statistics
are little bit depends on eachother. | * ANOVA ANOVAa | Model | Sum of Squares | df | Mean Square | F | Sig. | 1 | Regression | 11.784 | 1 | 11.784 | 33.572 | .000b | | Residual | 27.378 | 78 | .351 | | | | Total | 39.162 | 79 | | | | a. Dependent Variable: MEAN_JS | b. Predictors: (Constant)‚ MEAN_OC | ANOVA TABLE * This table indicates that the regression model predicts the outcome variable significantly well. * Here‚ p(sig.) < 0.0005‚ which is less than 0.05‚ and indicates
Premium Regression analysis Statistics
03 Course# 507 MAIN OBJECTIVE OF PROBLEM: Main objective of the problem is to maximize profit of the company‚ that produces milk made products and minimize shipping cost of these products to supply at different stores in the city. The main objective is achieve by using linear programming optimization methods. EXACT PROBLEM DEFINITION: A company produces milk made products such as‚ Cream‚ Skim milk‚ Full Cream Milk‚ butter and ghee. The company uses 3000000 liters of milk monthly for producing
Premium Milk Metric system Kilogram
Project: Multiple Regression Model Introduction Today’s stock market offers as many opportunities for investors to raise money as jeopardies to lose it because market depends on different factors‚ such as overall observed country’s performance‚ foreign countries’ performance‚ and unexpected events. One of the most important stock market indexes is Standard & Poor’s 500 (S&P 500) as it comprises the 500 largest American companies across various industries and sectors. Many people put
Premium Inflation Stock market Unemployment
EE2 Signals and Linear Systems Pier Luigi Dragotti Electrical & Electronic Engineering Department Imperial College London URL: http://www.commsp.ee.ic.ac.uk/~pld/Teaching/ E-mail: p.dragotti@imperial.ac.uk PLD Autumn 2012 Thursday‚ 27 September 12 Signals and Linear Systems Lecture 1 Aims and Objectives “The concepts of signals and systems arise in a variety of fields and the techniques associated with these notions play a central role in many areas of science and technology
Premium Digital signal processing Fourier transform