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In the figure above the vertical deviations of the individual points from the line are shown as the short vertical lines joining the points to the least squares line. These deviations will be denoted by the symbol the value of e varies from one point to another. In some cases it is positive in others it is negative. If the line drawn happens to be the least squares line then the value of ∑e2 is the least possible. It is because of this feature the methods is known as least squares methods.
Why we insist on minimizing the sum of squared deviations is a question that needs explanation. It we denote the deviation from the actual value y to estimated value (Y - Y )or e it is logical that we want the ∑ ( Y-Y) or ∑ e to be as small as possible however mere examining ∑ ( Y-Y) or ∑ e is inappropriate since any e can be positive or negative and large positive value and large negative values could cancel one another out. But large values of e regardless of their sign indicate a poor prediction. Even if we ignore the sings while working out ∑e the difficulties may continue to be there . hence the standard procedure is to eliminate the effect of sings by squaring each observation. Squaring each term accomplishes two purposes viz.
BPEL is a language for relatively easy description of how web services are composed into business processes. BPEL is the first of its kind. BPEL ? Permits abstract and execut
QUESTION 1 (a) Define the terms globalization and informatisation. (b) Critically discuss how is globalization and informatisation impacting upon intercultural communication
Controls on the production systems: 1. No inventory is moved unless authorized to be so by a move card. 2. Each bin contains a fixed exact quantity of inventory no mor
Question: a) Discuss the relationship between the concept of sustainable development and clean development mechanism. b) List the benefits of Clean Development Mechanism.
‘It should be obvious that simply the signing of a treaty to remove barriers to trade does not have any effect on the intra-group trade if the prospective partners do not demand ea
When a customer wants a prescription filled, a sales associate receives the member's card and prescription and logs the request in a prescription log which contains the member's nu
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an analysis of the fluctuation in share prices of fujitsu LLC and Dell LLC yielded the following results fujitsu LLC Dell LLc Average Price 138.0 118.5
What are the types of different barriers to successful communication? Various barriers to successful communication are as illustrated here: a. More levels within the organis
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