Alexander College Comm 291 Assignment 1 Instructor: Alfred Kong Due date: 26th May 2014 The assignment is due at the beginning of the class. Late assignment will not be accepted. For this assignment‚ complete all of the following questions. Question 1 A manufacturer of cat food was planning to survey households in the US to determine purchasing habits of cat owners. Among the questions to be included are those that relate to 1. Where cat fat is primarily purchased. 2. Whether
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ASSIGNMENT SUBMISSION FORM Course Name: SMMD Assignment Title: Assignment 1 (HousePrices.jmp) Submitted by: Garima Agrawal (Section D) (Student name or group name) Group Member Name | PG ID | Garima Agrawal | 61410506 | Question1: The data for home values has a considerable wide range (429578) as compared to the inter-quartile range (93522). This means the data has a huge spread and the same can be verified from coefficient of variation which is even more than 41%. Besides
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between the proportion value and the standard deviation of the sample proportion. This is not the case with means—knowing the sample mean tells us nothing about SD( y) We’ll do the best we can: estimate the population parameter σ with the sample statistic s. s Our resulting standard error is SE ( y ) = n Copyright © 2010 Pearson Education‚ Inc. n n Slide 23 - 5 Getting Started (cont.) n n We now have extra variation in our standard error from s‚ the sample standard deviation
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Inferential Statistics and Findings Erick Mart QNT/561 August 25th 2014 Mario LOPEZ Inferential Statistics and Findings Inferential Statistic is the process of drawing conclusions from data that are subject to random variation‚ for example‚ observational errors or sampling variation. Our team uses inferential statistic to compare two groups‚ which are Melks and DHL. This paper outlines the sampling and data collection procedure used to test the null hypothesis. The null and alternate hypotheses
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AB1202 – Statistics and Quantitative Methods Nanyang Business School AB1202 – STATISTICS AND QUANTITATIVE METHODS Academic Year : 2014– 2015 Course Coordinator : Chin Chee Kai Pre-requisites : - No. of AUs Semester : S1 : 3 Course Description and Scope In almost every form of business‚ we routinely deal with uncertain business outcomes‚ risky decisions‚ unknowable parameters‚ imprecise opinions and measurements‚ and most importantly‚ the elusive element called
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ANSWER: a 4. One-tailed alternatives are phrased in terms of: a. ( b. < or > c. ( or = d. [pic] ANSWER: b 5. The chi-square goodness-of-fit test can be used to test for: a. significance of sample statistics b. difference between population means c. normality d. probability ANSWER: c 6. A type II error occurs when: a. the null hypothesis is incorrectly accepted when it is false b. the null hypothesis is incorrectly
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Football Soccer STATS is the market leader in global football coverage‚ covering the most prestigious football leagues from South America to Asia. STATS is the source for detailed statistical information in global football. Our real-time coverage features lineups‚ substitutions‚ fouls‚ bookings‚ shots‚ crosses and goals accompanied by rich play-by-play commentary keeping fans in touch with how the match is unfolding on the pitch. Additionally‚ STATS delivers premium level data for the passionate
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Population Sample Descriptive Statistic Inferential Statistics Parameter vs Statistics Variable a. Categorical Statistic estimates Parameter b. Quantitative estimates ‚ sample mean ‚ population i. Discrete mean s‚ sample standard estimates ‚ population ii. Continuous deviation standard deviation Random Variable estimates P‚ population ˆ p ‚ sample Sampling Distributions proportion proportion Parameter (Defines a population) Statistic (calculated from sample to estimate
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Assigmnment 1 Question 1: Give a comprehensive account of the importance of Statistics to you (i) as a government agent‚ (ii) as a Public Administrator‚ (iii) as an individual Statistics‚ is study of the systematic collection‚ organization‚ and interpretation of data. This includes the planning of data collection in terms of the design of surveys and experiments. Is is therefore safe to say that Statistics‚ as a discipline‚ is the development and application of methods to collect‚ analyze and
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The Use and Misuse of Statistics For a complete list of Harvard Business School Publishing newsletters: http://newsletters.harvardbusinessonline.org For reprint and subscription information for Harvard Management Update: Call 800-988-0866 or 617-783-7500 http://hmu.harvardbusinessonline.org For customized and quantity orders of reprints: Call 617-783-7626 Fax 617-783-7658 For permission to copy or republish: Call 617-783-7587 The Use and Misuse of Statistics How good are those
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