...ANSWERS TO CASES Chapter 1 DiGiorno Pizza: Introducing a Frozen Pizza to Compete with Carry-Out In conducting research for the launching of a new product it is imperative that the target population be identified. In this case, who are the people most likely to be interested in purchasing and consuming frozen pizzas in lieu of carry-out pizzas? How are these people to be identified for sampling (Chapter 7 refers to this group as the “frame”)? Should a test market city or area be used? Why or why not? What mode of survey such as telephone, mail, or personal interview should be used? When should these people be surveyed? Does time of day, day of the week, or season of the year make any difference? What types of measurements should be taken? Some possible measurements might include dollar amounts spent per week of pizza per family, number of pizzas purchased per month, percentage of family pizza consumption that is frozen pizza, and total amount spent per month on take out food. 1. One population that was identified was “pizza lovers”. These people may have been previously identified by market researchers based on number of pizzas purchased per month, use of coupons, or from previous surveys. Another population mentioned in the case was women ages 25 to 54. The advertisements shown on national TV were likely aimed at the general population because Kraft was attempting to achieve broader goals such as brand name recognition and a dissemination...
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...Senior Author Support/Technology Specialist: Joe Vetere Manufacturing Manager: Evelyn Beaton Senior Manufacturing Buyer: Carol Melville Production Coordination, Technical Illustrations, and Composition: Laserwords Maine Cover Photo Credit: Abstract green flow, ©Oriontrail/Shutterstock Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and Pearson was aware of a trademark claim, the designations have been printed in initial caps or all caps. Library of Congress Cataloging-in-Publication Data Mendenhall, William. A second course in statistics : regression analysis/ William Mendenhall, Terry Sincich –7th ed. p. cm. Includes index. ISBN 0-321-69169-5 1. Commercial statistics. 2. Statistics. 3. Regression analysis. I. Sincich, Terry, II. Title. HF1017.M46 2012 519.5′ 36–dc22 2010000433 Copyright © 2012, 2003, 1996 by Pearson Education, Inc. All rights reserved. No part of this publication may be reproduced, stored in a...
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...CHAPTER 9 Hypothesis Tests CONTENTS 9.4 POPULATION MEAN: σ UNKNOWN One-Tailed Test Two-Tailed Test Summary and Practical Advice 9.5 POPULATION PROPORTION Summary 9.6 HYPOTHESIS TESTING AND DECISION MAKING 9.7 CALCULATING THE PROBABILITY OF TYPE II ERRORS 9.8 DETERMINING THE SAMPLE SIZE FOR A HYPOTHESIS TEST ABOUT A POPULATION MEAN STATISTICS IN PRACTICE: JOHN MORRELL & COMPANY 9.1 DEVELOPING NULL AND ALTERNATIVE HYPOTHESES The Alternative Hypothesis as a Research Hypothesis The Null Hypothesis as an Assumption to Be Challenged Summary of Forms for Null and Alternative Hypotheses 9.2 TYPE I AND TYPE II ERRORS 9.3 POPULATION MEAN: σ KNOWN One-Tailed Test Two-Tailed Test Summary and Practical Advice Relationship Between Interval Estimation and Hypothesis Testing 349 Statistics in Practice STATISTICS in PRACTICE JOHN MORRELL & COMPANY* CINCINNATI, OHIO John Morrell & Company, which began in England in 1827, is considered the oldest continuously operating meat manufacturer in the United States. It is a wholly owned and independently managed subsidiary of Smithfield Foods, Smithfield, Virginia. John Morrell & Company offers an extensive product line of processed meats and fresh pork to consumers under 13 regional brands including John Morrell, E-Z-Cut, Tobin’s First Prize, Dinner Bell, Hunter, Kretschmar, Rath, Rodeo, Shenson, Farmers Hickory Brand, Iowa Quality, and Peyton’s. Each regional brand enjoys high brand recognition and loyalty among consumers. Market...
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...ASSESEMENT OF FACTORS AFFECTING GENDER IN ACADEMIC AREA INACADEMI ACHEVIMENT ABSTRACT The objective of the study is to provide sufficient and reliable statistical information on the rationality behind gender difference in academic performance. Equality is one of the greatest issues that peoples have been scarifying their money, knowledge and even their life to maintain it throughout their people, nation and the world in general. For this study, we are use questioner as an instrument of data collection. The collected data is analyzed by using descriptive and inferential statistics. From descriptive method, bar-chart, frequency table and pie-chart are used to analyze the descriptive statistics and from the inferential method chi-square test to test the association between two factors and regression analysis and interpretation and two main methods used in inferential statistics, estimation and hypothesis testing. CHAPTER ONE INTRODUCATION Background of the study Women in Ethiopia are mainly limited to unpaid house responsibilities such as child as rearing, feeding the family, farming, taking care of domestic animals, giving birth as many as she can of her husband’s children and bringing them up, cleaning, hewing wood fetching water, milking and etc. In addition to this, both culture and religion also play a major role in limiting the positive role that women can play. According to Get chew kasha...
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...Analysis of Noise impact on various parameters by Response Surface methodology for optimum Safe Working Area N.Boominathan1, G.K.Vijayaraghavan2, R.Kathiravan3 1Research scholar, Periyar Maniammai University, Vallam, Thanjavur, Tamilnadu. Email:nboominathan@gmail.com 2Principal, Dhaanish Ahmed college of engineering, Padappai, Chennai 601 301. Tamilnadu Email: haigkv@yahoo.com 3Professor and Head, Aerospace engineering department, Periyar Maniammai University, Vallam, Thanjavur, Tamilnadu. Email: kathirrk3000@gmail.com Abstract— Enormous growth of population and industries leads waste disposal problems and occupational health hazards like noise, illumination, pollution. They become very difficult to control and manage. Huge amount of money and time are spent year by year to minimize the effects and to find an easy and safe way to manage them. Lot of research works are going on to find an optimum level to minimize the health hazards for workers and society. Various factors are to be considered and it may vary from place to place and time to time. Noise analysis is essential with various related parameters like noise producing sources, its intensity, number of sources and distance. It is necessary to find an optimum safe working area or location for occupational...
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... | | | |Downtown Campus | | | |6:00pm to 10:00pm | | | |School of Business | | | |QNT/351 | | | |Quantitative Analysis for Business | | | |Dr. Jacquelyn B. Frausto | | Copyright © 2013, 2012, 2011 by University of Phoenix. All rights reserved. Course Description This course integrates applied business research and descriptive statistics. Students will learn to apply business research and descriptive statistics in making better business decisions. Other topics include examination of the role of statistics in research, statistical terminology, the appropriate use of statistical techniques, and interpretation of statistical findings in business and research. Policies Faculty and students will...
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...Organizational Part 1. A. Introduction: Grameenphone is the largest mobile telecommunications operator in Bangladesh in terms of revenue, coverage and subscriber base. The company was incorporated on October 10, 1996 as a private limited company. Grameenphone converted to a public limited company on June 25, 2007. Trading of the company‘s shares started at Dhaka and Chittagong Stock Exchanges from 16 Nov. 2009. The shareholding structure comprises of mainly two sponsor Shareholders namely Telenor Mobile Communications AS (55.80%) and Grameen Telecom (34.20%). The rest 10.00% shareholding includes General public & other Institutions. Since its inception in March 1997, Grameenphone has built the largest cellular network in the country with over 12,000 base stations in more than 6000 locations. Presently, nearly 98 percent of the country's population is within the coverage area of the Grameenphone network. The company has so far invested more than BDT 15,260 crore to build the network infrastructure since its inception in 1997. Grameenphone is also one the largest taxpayers in the country, having contributed more than BDT 16,600 crore in direct and indirect taxes to the Government Exchequer over the years. Grameenphone was also the first operator to introduce the pre-paid service in September 1999. It established the first 24-hour Call Center, introduced value-added services such as VMS, SMS, fax and data transmission services, international roaming service, WAP...
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...THE EFFECT OF STUDY HABITS ON THE ACADEMIC PERFORMANCE OF FRESHMEN EDUCATION STUDENTS IN XAVIER UNIVERSITY, CAGAYAN DE ORO CITY, SCHOOL YEAR 2008-2009” Chapter 1 THE PROBLEM A. Introduction The extent of student’s learning in academics may be determined by the grades a student earns for a period of learning has been done. It is believed that a grade is a primary indicator of such learning. If a learner earns high grades it is concluded that they may also have learned a lot while low grades indicate lesser learning. However, many experiences and studies found out that there are also several factors that would account for the grades. No single factor can be definitely pointed out as predicting grades. It has been an interplay of so many factors – gender, IQ, study habits, age, year level, parent’s educational attainment, social status, number of siblings, birth order, etc. In fact, almost all of existing environmental and personal factors are a variable of academic performance. However, at this point in time, the researchers would like to investigate the possible relationship of study habits and the factors affecting it to the academic achievement of under graduate education students of Xavier University- Ateneo de Cagayan. The investigation of on this area thus becomes a real and compelling motivation for the researchers to conduct this study. B. Conceptual Framework Independent variables as it influence the dependent variable...
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...Chapter 10: Comparing Two Groups Bivariate Analysis: Methods for comparing two groups are special cases of bivariate statistical methods – Two variables exist: Response variable – outcome variable on which comparisons are made Explanatory variable – binary variable that specifies the groups Statistical methods analyze how the outcome on the response variable depends on or is explained by the value of the explanatory variable Independent Samples: Most comparisons of groups use independent samples from the groups, The observations in one sample are independent of those in the other sample Example: Randomized experiments that randomly allocate subjects to two treatments Example: An observational study that separates subjects into groups according to their value for an explanatory variable Dependent samples: Dependent samples result when the data are matched pairs – each subject in one sample is matched with a subject in the other sample Example: set of married couples, the men being in one sample and the women in the other. Example: Each subject is observed at two times, so the two samples have the same subject Categorical response variable: For a categorical response variable - Inferences compare groups in terms of their population proportions in a particular category - We can compare the groups by the difference in their population proportions: (p1 – p2) Example: Experiment: Subjects were 22,071 male physicians Every other day for five years, study participants...
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.... ReseaRching and WRiting a disseRtation a guidebook foR business students Colin Fisher second edition . Researching and Writing a Dissertation: A Guidebook for Business Students . We work with leading authors to develop the strongest educational materials in management, bringing cutting-edge thinking and best learning practice to a global market. Under a range of well-known imprints, including Financial Times Prentice Hall, we craft high-quality print and electronic publications which help readers to understand and apply their content, whether studying or at work. To find out more about the complete range of our publishing, please visit us on the World Wide Web at: www.pearsoned.co.uk . Researching and Writing a Dissertation: A Guidebook for Business Students Second edition Colin Fisher with John Buglear Diannah Lowry Alistair Mutch Carole Tansley . Pearson Education Limited Edinburgh Gate Harlow Essex CM20 2JE England and Associated Companies throughout the world Visit us on the World Wide Web at: www.pearsoned.co.uk First published 2004 Second edition 2007 © Pearson Education Limited 2004 © Pearson Education Limited 2007 The right of Colin Fisher to be identified as author of this work has been asserted by him in accordance with the Copyright, Designs and Patents Act 1988. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical...
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...The Six Sigma Handbook Revised and Expanded A Complete Guide for Green Belts, Black Belts, and Managers at All Levels THOMAS PYZDEK McGraw-Hill New York Chicago San Francisco Lisbon London Madrid Mexico City Milan New Delhi San Juan Seoul Singapore Sydney Toronto Copyright © 2003 by The McGraw-HIll Companies, Inc. All rights reserved. Manufactured in the United States of America. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-141596-3 The material in this eBook also appears in the print version of this title: 0-07-141015-5. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more information, please contact George Hoare, Special Sales, at george_hoare@mcgraw-hill.com or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. (“McGraw-Hill”) and its licensors reserve all...
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...A Handbook on Thesis Writing 1 BASICS OF THESIS WRITING Thesis Writing is a requirement for graduating students particularly those who opted for Plan A (Thesis) instead of a comprehensive examination. This book focuses on the mechanics on how to develop a thesis and is made simple for easy understanding of the processes. Many students are confronted with tasks that demand good writing skills. They need guidance on how to go about the complex job of writing a thesis or dissertation. This book will therefore serve as a guide. Thesis Writing is subsumed under Technical Writing. All professional fields require technical documents that help readers perform tasks and understand specific tasks. As mentioned by some authors, thesis is classified under technical writing as it provides vital information to specific readers. Technical Writing refers to the provision of specific information to clearly identified readers who will use the information for a specific purpose. KEY FEATURES OF TECHNICAL WRITING Three Elements of Technical Writing. The elements are reader, purpose and writing situation. The reader seeks information for a specific purpose. The purpose is to design a document that will serve the reader's need and help the reader understand the information. The writing situation consist of both reader and purpose, as well as such factors such as the sponsoring organization's size, budget, ethics, deadlines, policies, competition and priorities. Three General Stages of Technical...
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...SCHOOL AND WORK TARDINESS IN HIGH SCHOOL STUDENTS IN RURAL WISCONSIN by Barbara Lee Weade A Research Paper Submitted in Partial Fulfillment of the Requirements for the Master of Science Degree in Training and Development Approved: 4 Semester Credits ________________________________________________ Dr. Joseph A. Benkowski, Research Advisor The Graduate College University of Wisconsin - Stout May, 2004 ii The Graduate College University of Wisconsin Stout Menomonie, WI 54751 ABSTRACT Weade (Writer)(Last Name) Barbara (First) L. (Middle Initial) SCHOOL AND WORK TARDINESS IN HIGH SCHOOL STUDENTS IN RURAL WISCONSIN Title Training & Development Dev (Graduate Program) Dr. Joseph Benkowski (Research Advisor) May 2004 (Month/Year) 80 (#Pgs) American Psychological Association, 5th edition Manual Style Businesses expect employees to arrive at the workplace with basic Asoft skills@ which include personal attributes like punctuality. The purpose of this research study was to examine the relationship between school and work tardiness in high school students in rural central Wisconsin. The literature review covered tardiness and absences in the work and school environment, school failure and its relationship to school tardiness and absenteeism, school interventions to change deviant behavior, students= insights about deviant school behavior, the home influence on school tardiness and absences, and the effect of work on school behavior and iii performance. The...
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...Research Methods –STA630 VU Research Methods (STA630) Contents Lesson 1: INTRODUCTION, DEFINITION & VALUE OF RESEARCH ........................ 14 What is Research?................................................................................................................... 14 What is the value of Research? ............................................................................................... 14 Research helps in developing methodologies ......................................................................... 15 We are surrounded by research............................................................................................... 16 Lesson 2: SCIENTIFIC METHOD OF RESEARCH & ITS SPECIAL FEATURES ...... 17 Important Characteristics of Scientific Method ...................................................................... 17 1. Empirical......................................................................................................................... 17 2. Verifiable ........................................................................................................................ 18 3. Cumulative ..................................................................................................................... 18 4. Deterministic.................................................................................................................. 18 5. Ethical and Ideological Neutrality ............................................................
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...C H A P T E R 6 The Normal Distribution Objectives After completing this chapter, you should be able to Outline Introduction 6–1 Normal Distributions 1 2 3 4 5 6 7 Identify distributions as symmetric or skewed. Identify the properties of a normal distribution. Find the area under the standard normal distribution, given various z values. Find probabilities for a normally distributed variable by transforming it into a standard normal variable. Find specific data values for given percentages, using the standard normal distribution. Use the central limit theorem to solve problems involving sample means for large samples. Use the normal approximation to compute probabilities for a binomial variable. 6–2 Applications of the Normal Distribution 6–3 The Central Limit Theorem 6–4 The Normal Approximation to the Binomial Distribution Summary 6–1 300 Chapter 6 The Normal Distribution Statistics Today What Is Normal? Medical researchers have determined so-called normal intervals for a person’s blood pressure, cholesterol, triglycerides, and the like. For example, the normal range of systolic blood pressure is 110 to 140. The normal interval for a person’s triglycerides is from 30 to 200 milligrams per deciliter (mg/dl). By measuring these variables, a physician can determine if a patient’s vital statistics are within the normal interval or if some type of treatment is needed to correct a condition and avoid future illnesses. The question then is,...
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