Weekly Homework 9: Detection of Heteroskedasticity 1. Heteroskedasticity (1 point each) 1) Carefully explain the difference between pure and impure heteroskedasticity and their consequences in OLS. Answer: -Pure heteroskedasticity is caused by the error term of the correctly specified equation. Impure heteroskedasticity is caused by a specification error such as an omitted variable. -Pure heteroskedasticity does not cause bias in the coefficient estimates. However‚ it typically causes
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THE WORLD That’s a rather vague question. The earliest true humans were Homo erectus. These early humans only used stones to begin with. Their earliest technology was called Oldowan and involved breaking smooth‚ rounded pebbles from rivers in rather a crude fashion to get a sharp edge to cut with. Later they developed a more sophisticated technique‚ creating a large‚ hand-held item shaped rather like a teardrop. It had two sharp sides coming to a point and one dull‚ rounded side which the
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and responsible parent. Therefore‚ the success life with each person has different meanings is due to the way of their understanding and definition of the success word. People often speak of success as an important destination of life and say positive thinking leads to success. But what is success? In the most common sense‚ a success word means when people have a specific purpose and they achieved it that is called success. Moreover‚ most people might agree the ultimate goal of every person in their
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What’s so wrong about the word “retard”? Joseph Franklin would say‚“ it means that the rest of you are excluding us from your group. We are something that is not like you and something that none of you would ever want to be. We are something outside the "in" group. We are someone that is not your kind. I want you to know that it hurts to be left out here‚ alone.” Franklin has Down syndrome. The 30 year old who serves as a Global Messenger for the Special Olympics‚ has struggled with the public’s
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When I think about the word love‚ the four letters arranged in a random pattern‚ nothing is simpler. Clearly‚ a distinct difference lies between a word and what it represents. The importance of the word love lies in the power it has over people. When asking someone what love means‚ not one person has a solid answer to the question. The word love is so abstract‚ as to which why I adore the word “Love.” While growing older‚ we have used the word love in many contexts. The word love can be referred
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I really enjoyed reading A Loss for Words: the Story of Deafness in a Family. I found the book to be a pleasurable and extremely fast read. Lou Ann Walker definitely has an impacting touch on anyone who reads her story. This story highlights the challenges of being different. Her parents being deaf really caused a strain on her lifestyle. Also‚ the reactions of others affected her tremendously. Lou Ann really opens the eyes of those who do not understand deafness. How the deaf community functions
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Is it possible for one man to be two different people? A quote once stated that actions speak louder than words. The actions of Okonkwo spoke much louder than the many words that fell from his mouth. Which lead him to have two different personalities. The character Okonkwo in the book‚ “Things Fall Apart‚” was a highly successful clan leader. His father‚ Unoka‚ was lazy‚ very irresponsible‚ fell into debt‚ and he brought shame to his family. Due to Okonkwo’s father’s bad reputation‚ it pushed him
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April 26th‚ 2010 Ana Manzanares Level 6 Have you ever heard about dentistry and all the things related to dentistry? Well‚ according to Wikipedia “Dentistry is the known evaluation diagnosis‚ prevention‚ and treatment of diseases and conditions related to human mouth”. Dentistry is considered necessary to complete all human health. People who study dentistry are usually called dentists. This field has to do with tissues of the jaw (mandible)‚ the oral cavity‚ maxillofacial area and some
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"...communication in social work is not just about the message or information gleaned or conveyed‚ it is also about relationships and the influences and impact of history and personal experiences that is brought along by the worker and the service user" (Okitikpi and Aymer (eds) 2008:72) Communication is central to all relationships‚ for this relationship to achieve social workers must be able to communicate in an effective manner at the same time have good interpersonal skills in a professional
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married his high school sweetheart‚ Norma. George started singing while in the army. After he got out of the army he started trying to build a successful career in country music. It took George awhile to really launch his career. George Strait has more than 50 number one hits. George Strait was born on May 18‚ 1952 in Poteet‚ Texas. George’s father‚ John Strait‚ was a junior high school math teacher and his mother was a homemaker. George was in fourth grade when his mother and father divorced. George
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