for a year ( 12 months). We calculate the variance for both and define the “degrees of freedom’ (n-1= 11) and then we can build the F-distribution. F statistic (): Defined as the ratio of the dispersions of the two distributions‚ in other words it is the value calculated by the ratio of two sample variances . F always >=1. The F statistic can test the null hypothesis: (1) that the two sample variances are from normal populations with a common variance; (2) that two population means are equal;
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EXERCISES FOR MICROECONOMICS TOPIC 1 Economics: An Introduction (Chapters 1 & 2 in the Textbook) EXPLAIN THE FOLLOWINGTERMS ◎ Average benefit ◎ Average cost ◎ Economic surplus ◎ Economics ◎ Microeconomics ◎ Macroeconomics ◎ Marginal benefit ◎ Marginal cost ◎ Normative economics ◎ Positive economics ◎ Rational person ◎ Sunk cost ◎ Opportunity cost ◎ Absolute advantage ◎ Comparative advantage ◎ Attainable point ◎ Unattainable point ◎ Efficient point ◎ Inefficient
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both the mental and physical health aspects. Positive exercise habits formed in childhood tend to carry over into adulthood‚ thus helping reduce death and illness in the future. There are many other positive benefits that come through the form of exercise. Just as well‚ there are negative effects that can results from lack of exercise. Developing and instilling the importance of exercise through education is valuable to the youth of exercise. When determining physical activity‚ it is important
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Q1. (a) ‘Statistics is the backbone of decision-making’. Comment. Ans.(a) Due to advanced communication network‚ rapid changes in consumer behavior‚ varied expectations of variety of consumers and new market openings‚ modern managers have a difficult task of making quick and appropriate decisions. Therefore‚ there is a need for them to depend more upon quantitative techniques like mathematical models‚ statistics‚ operations research and econometrics. Decision making is a key part of our day-to-day
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Descriptive and Inferential Statistics Statistical methods in psychology have two main branches‚ which are descriptive and inferential. They each play a major part in the data that is collected for research and other studies. This paper will show the functions of statistics‚ how descriptive and inferential statistics are defined and the relationship between the two. Statistics is a necessary tool in psychology. It provides data for research studies as well as providing background information and
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Importance of Exercise Most of us know by now that we should be exercising on a regular basis. But do you really know why exercise is so important? Not only does working out help you shed a few pounds‚ but there are also many other compelling reasons to include some regular activity in your routine. To begin with‚ Exercise has many benefits that will help people live longer‚ healthier‚ and happier lives. Not only is exercise healthful‚ it also has an effect on our overall appearance and body
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Exercise 1: Action movies inspire youngster to imitate risky and dangerous acts like car races and stunts. In not less than 350 words‚ discuss this statement by providing justifications and examples. Exercise 2: Reading comics is certainly not educational for the young. How far do you agree with this statement? Give reasons for your answer. You should write at least 350 words. Exercise 3: ‘Parents know best as far as careers are concerned.’ What do you think? You should write at least 350
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Essay Topic “Evidence That Structured Exercise Helps Effectively Prevent and/or Manage Type 2 Diabetes Mellitus” Introduction According to the American Diabetes Association there are 23.6 million children and adults in the United States‚ or 7.8% of the population‚ who have diabetes. While an estimated 17.9 million have been diagnosed with diabetes‚ unfortunately‚ 5.7 million people (or nearly one quarter) are unaware that they have the disease (1). Diabetes is a metabolic disorder in which
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Course: Professor: Term: Sections: 001: 002: 003: 502: Contact Information: Office Phone Office Location Email OPRE 6301/SYSM 6303 (cross-listed courses) FALL 2012 Carol A. Flannery‚ Ed.D. Fall 2012 Friday Tues/Thurs Wednesday Thursday 4:00 pm to 6:45 pm 11:30 am to 12:45 pm 1:00 pm to 3:45 pm 7:00 pm to 9:45 pm SOM 1.217 SOM 2.106 SOM 1.117 SOM 1.212 972-883-5853 (Answered only during office hours) JSOM 2.416 flannery@utdallas.edu All contact concerning your
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Exercise and Obesity Being active through exercise can enhance your quality of life. There are so many activities to help in the fight against obesity. Obesity and lack of exercise cause a variety of problems in the young adult population. From increased risk of diseases‚ overall poor health and psychological issues‚ the consequences of obesity and a sedentary lifestyle are complex and far reaching. Learning the effects of obesity and lack of exercise may encourage
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