CURTIN UNIVERSITY Department of Mathematics and Statistics Mathematics 103 MID-SEMESTER TEST Semester 1‚ 2013 INSTRUCTIONS: Answer all questions in the spaces provided. To obtain full marks for a question you must clearly show appropriate working. TIME ALLOWED: TOTAL MARKS: AIDS ALLOWED: 50 minutes. 50 1. 2. Scientific or Graphics Calculator. A4 Sheet of handwritten notes (both sides). Last Name: _______________________________________________________________ Given Name: _________
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of miscalculations‚ randomized sampling as well as certainty periods. Such thoughts like these are statistical by nature without us even realizing it. To further explain statistics‚ it is a discipline that is made up regarding certain factors that involve things like deductive reasoning; granted‚ Science is practically statistics in and of itself through fabricating experimentations that require data collectivity‚ recapitulating information for the purpose of understanding something and pulling deductions
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Week 5 - Inferential Statistics QNT/521 10/23/2014 Week 5 - Inferential Statistics TCSCK Investment Company ’s scenario poses the question: Is there a significant difference in price between the condominiums closer to the city compared to those further away from the city? The dependent variable is the price of the condominiums and the independent variable is distance from the city. Statistical Analytics The statistical tool used in our sampling is the t-score instead of the Z-score‚ reason being
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Project 4 Fall 2012 1. Open the data file called JCrew on Blackboard under the Assignments link. 2. Get a 4 point Moving Average for the data using Time Series Analysis. 3. Highlight the Revenue column and the 4MA column. Insert /Line. 4. Go back to the data. Time Series Analysis/ Exponential Smoothing. Use alpha of .7. 5. Highlight Revenue and Smoothed and Insert /Line. 6. Go back to the data. Time Series Analysis/ Trendline / pick Exp Ln. Check the Scatterplot and all
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US_FORCLSURE = UNEPLY_RATE + REVOLV_DEBT + DIVORCE + DEATH Dependent Variable: a. U.S. Foreclosures Filing (Y: US_FORCLSURE)- The dependent variable‚ U.S. Foreclosures Filings‚ is used in the cause and affect relationship presented throughout the project. The following independent variables will be used to determine the most significant factor in U.S. foreclosure filings. This data is collected every month from more than 2‚200 counties by RealtyTrac®. RealtyTrac® compiles this nationwide data and
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Project of Demand Estimation Due Oct. 31st Instruction: You should prepare the case with your group members. Each group is required to submit a word file detailing your analysis. You will be graded on your group’s performance and your contribution to your group. Summary of the case: You work for Price Waterman Coopers as a market analyst. PWC has been hired by the owner of two Burger King restaurants located in a suburban Atlanta market area to study the demand for its basic hamburger meal
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results‚ it gives recommendations to Caddyhome in terms of their product strategy. Thus‚ if it is worthwhile for Caddyhome to transform to an online hypermarket and which products should be included in the assortment. The main question this research project seeks to answer is: “does an online hypermarket increase customer satisfaction?”. We chose this problem statement because we believe that customer satisfaction is the clearest tool
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Research types Experimental - uses independent (random‚ representative‚ etc.) vs. dependent (observed outcomes)‚ free of confounds. Make causal claims about why things happen‚ prevent bad stuff‚ promote good stuff. “experiments" Correlational - descriptive‚ observational. Does not make causal claims. “studies" Variable types (SS Stevens‚ 1946) Nominal - assign item to category; are discrete / categorical Ordinal - rank order items; are categorical‚ but often treated
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9.54 (a) At the .01 level of significance‚is the true mean greater than 10? Null Hypothesis: Ho: M = 10 :Mean is 10 or less pages Alternative Hypothesis: H1: M >10 :Mean is more than 10 pages Significance level=alpha (a) = 0.01 or 1% No of tails= 1 This is a 1-tailed test because we are testing that the mean is greater than 10 Since sample size= 35 >= 30 we will use normal distribution This is a one tailed test because we are testing the area in the right tail Since
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_________________________________________ How is Statistics Different from Mathematics? And Why Is the Distinction Important? By Isidoro P. David Acronyms: CHED-Commission on Higher Education; NHERA-National Higher Education Research Agenda; HEI-Higher Education Institution; PSA- Philippine Statistical Association; SRTC-Statistical Research and Training Center; UPD-SS- University of the Philippines School of Statistics; UPLB-IS- University of the Philippines at Los Banes Institute of Statistics; GAISE- Guidelines
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