|T F |1. |If on average y increases as x increases‚ the correlation coefficient is positive. | |T F |2. |Pearson’s correlation coefficient‚ r‚ does not depend on the units of measurement of the two variables. | |T F |3. |The value of Pearson’s r is always between 0 and 1. | |T F |4. |If r is close to 1‚ then the points lie close to a straight line with a positive
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2/8 (Friday) Standard Deviation cont’d Example: Amount of money earned by new immigrants Sample: 12‚ 15‚ 16‚ 20‚ 25‚ 36‚ 40 Step 1: Find the mean * x̄=164/7 * mean is 23.4 Step 2: Find how much each observation deviates from the mean * 12 - 23.4 = -11.4 * 15 – 23.4 = -8.4 * 16 – 23.4 = -7.4 * 20 – 23.4 = -3.4 * 25 – 23.4 = 1.6 * 36 – 23.4 = 12.6 * 40 – 23.4 = 16.6 * Note: all observations below mean will be negative‚ all above will be positive Step
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Kobe Ryan 11-17-09 KNES 342 Relaxation Paper The method I chose as a relaxation/stress-relief technique is Exercising. Exercising is one the most important things to do to keep your body not only healthy physically‚ but mentally as well. I find myself going to the gym almost five days a week to relieve myself from the stressful environment that I endure every week. Whether it would be from work‚ school‚ or issues happening at home or around me‚ Exercising and going to the gym will help me clear
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The Importance of Exercise Exercising is a key component of living a healthy life. “Regular exercise is necessary for physical fitness and good health. It reduces the risk of heart disease‚ cancer‚ high blood pressure‚ diabetes and other diseases. In my generation exercising can be over looked.”(Why is) People seem to be consumed more with television shows‚ fast food‚ and other unhealthy activities. “The average American watches three and a half hours of television every day. That adds up to 56
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Introduction The current state of the world economy is quite uncertain. Economic statistics that governments and other financial institutions use to project the economy imply that the world economy is shrinking. Since 2008‚ the state of the American economy has not been attractive. For instance‚ the United States economy has not registered any significant growth for the last three years. The 2011 second quarter results indicated that gross domestic product improved by 1%. At the same time‚ there
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Name:_____ Tina Wilhite Class: _____HLT-362V-0503 Date: ______01/25/2015 □ EXERCISE 16 Questions to be Graded 1. The researchers analyzed the data they collected as though it were at what level of measurement? a. Nominal b. Ordinal c. Interval/ratio d. Experimental 2. What was the mean posttest empowerment score for the control group? 97.12 3. Compare the mean baseline and posttest depression scores of the experimental group
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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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1. Grand and Toys strategy is to achieve sales of one billion Canadian dollars‚ maintain a strong brand to be the clear leader in the Canadian commercial segment and to operate about 85 commercially focused stores clustered in major markets. Grand & Toy also wants to achieve their marketing objectives by offering 8000 products through 90 locations and web ordering system. Performance objectives against the strategic plan to achieve its vision included: • Growing sales • Reducing costs and increasing
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and a grand jury." With every person convicted they have a right to trial and jury. There is a grand jury. Second kind of jury is a trial or petite jury. If the paragraphs below I will try to explain the differences between the two . A grand jury is a group of jurors who hear testimony for the prosecution’s witnesses as well as a statement about the crime from the prosecutor. A grand jury is run mostly by the prosecutor‚ and although the suspect does have a right to speak at a grand jury hearing
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Chapters 1-3:In order to control costs‚ a company wishes to study the amount of money its sales force spends entertaining clients. The following is a random sample of six entertainment expenses (dinner costs for four people) from expense reports submitted by members of the sales force. $157‚ $132‚ $109‚ $145‚ $125‚ $139. Calculate the mean and sample variance(s^2) and standard deviation. Mean = 807/6 = 134.5. Sample Variance = (109925 – (807^2/6)/6-1 = (109925 – 108541)/5 = 1384/5 = 276.8.
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