slope term is significantly different from zero. The appropriate statistical test to determine this is a t-test since the true regression error variance is generally unknown. The third check of regression is to evaluate what percent of the variation in the dependent variable is explained by variation in the independent variable. This is given by the R-squared (coefficient of determination) in regression output. Fourth‚ the regression model should be evaluated for serial correlation. The Durbin-Watson
Premium Statistics Regression analysis
1. What are at least four depreciation methods that are available to a company? There is the Activity Method‚ Straight-line Method‚ Sum-of-the-Years’-Digits Method and the Declining-Balance Method. 2. What are the similarities and the differences? The Activity Method‚ which is also known as the variable charge or units of production method. With this method‚ we consider the productivity and not the passage of time. The life of the asset is considered by the output and the input. There
Premium Depreciation
of forecasting‚ the science of predicting future events. From an operational point of view‚ market opportunities are the driving force behind production decisions and these opportunities are compiled in the form of demand forecasting which then provides the input for planning production: process design‚ capacity planning‚ aggregate planning‚ scheduling‚ and inventory management. But why forecasting is so important for operations? In order to understand the factors of forecasting‚ one should imagine
Premium Future Forecasting Prediction
Delphi method∗ Abstract The Delphi method was originally developed in the 50s by the RAND Corporation in Santa Monica‚ California. This approach consists of a survey conducted in two or more rounds and provides the participants in the second round with the results of the first so that they can alter the original assessments if they want to - or stick to their previous opinion. Nobody ‘looses face’ because the survey is done anonymously using a questionnaire (the first Delphis were panels)
Premium Futurology Delphi Forecasting
learn by reading books; others learn by listening to people talk about things. As far as I am concerned‚ the first method - learning by doing is suitable for me. The reasons are as follows. In the first place‚ I normally have a better understanding on the things that I learned by doing them. Ten years ago‚ after graduated from a university‚ I began working for an electronic company‚ which manufactures color televisions. During the first several months‚ I just sat in my office to read the mechanisms
Free Knowledge Learning Psychology
means of various objective methods and procedures. The term objective indicates that these methods and procedures do not rely on personal feelings or opinions and that the specific methods are used at each stage of the research process. These methods include procedures for drawing samples (e.g. simple random sampling)‚ measuring variables‚ collecting information and analysing the information. Research methodology considers and explains the logic behind research methods and techniques. Sources
Premium Sampling Scientific method
a manager charged with training his or her employees choose an appropriate method? This article defines some of the most common training methods and reviews pros and cons for each one. The method by which training is delivered often varies based on the needs of the company‚ the trainee‚ and on the task being performed. The method should suit the audience‚ the content‚ the business¡¦ environment‚ and the learning objective. Ideally‚ the method chosen will motivate employees to learn‚ help employees
Premium Skill
Introduc on Lab 1 The Scien c Method 13 14 Lab 1 : Scien c Method Concepts to explore: Concepts to explore: x x x x x x x x Testable observa ons Hypothesis Null hypothesis Experimental approach Variables Controls Data collec on Analysis Introduc on What is science? You have likely taken several classes throughout your career as a student‚ and know that it is more than just chapters in a book. Science is a process that uses evidence to understand
Premium Hypothesis Scientific method Water
* Closing- Should seek student input. 4. Independent Work- Exercises/projects student will work on during the given period of time. Homework to complete outside the class. 5. Assessments * Formal- Quiz‚ Test etc. * Informal- Question-and-Answer session. 6. Reflection- What work and what didn’t? Characteristics of a Lesson Plan: A. Specific- It should be definite. A teacher should know what she will teach and how she will teach it. He/she should be specific on
Premium Language education Linguistics Language
sampling methods. Give one example of each. Non-probability sampling Non-probability sampling is that sampling procedure which does not afford any basis for estimating the probability that each item in the population has of being included in the sample. In this type of sampling‚ items for the sample are selected deliberately by the researcher; his choice concerning the items remains supreme. Non-Probability Sampling Methods: The common feature in non probability sampling methods is that subjective
Free Sampling Sample size Sample