Study guides, Class notes & Summaries

A population is a collection of All individuals, objects, or measurements of interest Statistics are used to report The summary results of market surveys To infer something about a population we Usually take a sample from the population There are 4 levels of measurement Nominal, Ordinal, Interval & Ratio Data measured on a nominal scale can only be classified into Categories Consumers rated a new DVD played as outstanding, very good, fair or poor. What level of measurement is this? Ordina...

statistics the study of methods to collect, organize, analyze and interpret numerical data. individual any person or object of interest variable the characteristic of interest population the entire collection of individuals sample any subset of a population

Define statistics with citation and reference. Statistics is a science that involves collecting, analyzing, interpreting and presentation of data. Statistics, therefore, puts into consideration both primary and secondary data which is analyzed to create meaning, which is effectively interpreted and used in making decisions as per the results of, obtained from statistical analysis done. Therefore, statistical data includes both quantitative and qualitative data. These types of statistica...

Test Bank for Business Statistics: Communicating with Numbers, 5th Edition 5e by Jaggia - Chap 16 to 20 - Complete chapters are included in bundle document. 16 Regression Models for Nonlinear Relationships 17 Regression Models with Dummy Variables PART SIX: SUPPLEMENTARTY TOPICS 18 Forecasting with Time Series Data 19 Returns, Index Numbers, and Inflation 20 Nonparametric Tests

Test Bank for Business Statistics: Communicating with Numbers 5e 5th Edition by Jaggia - Chap 11 to 15. Full Chapters are included in bundle document. 11 Statistical Inference Concerning Variance 12 Chi-Square Tests PART FIVE: ADVANCED INFERENCE 13 Analysis of Variance 14 Regression Analysis 15 Inference with Regression Models

Test Bank for Business Statistics: Communicating with Numbers, 5th Edition by Jaggia - Chap 1 to 10 - Complete chapters are available in bundle document . PART ONE: INTRODUCTION 1 Data and Data Preparation PART TWO: DESCRIPTIVE STATISTICS 2 Tabular and Graphical Methods 3 Numerical Descriptive Measures PART THREE: PROBABILITIY AND PROBABILITY DISTRIBUTIONS 4 Introduction to Probability 5 Discrete Probability Distributions 6 Continuous Probability Distributions PAR...

Business decisions may be made by interpreting a statistical analysis of the variables of the process associated with the decision or by using instinct and insight derived from experience with the business process. When might a decision be made by these latter more "unstructured" techniques? A. Instinct or insight is always used in decision-making. B. Instinct is part of statistics. C. The business process on which the decision is made is unknown. D. Variables associated with the busine...

Five W's - Who, What, When, Where, Why Why five W's? - W's help nail down the context of the data. We must know who, what and why to be able to say anything useful based on the data. Who are the cases, what are the variables, why helps us to decide which way to treat the variables. A variable gives information about each of the cases. Categorical variables - Categorical variables identify a category for each case. For example, ask 20 people what color their car is. Blue, brown, red, whi...

XYZ Corporation made a profit of $3 million last year. ABC Corporation made a profit of $6 million last year. Based on the ratio scale, which of the following is an accurate statement about the relationship between ABC's profits and XYZ's profits? - XYZ was half as profitable as ABC. If the brand that had most sales was VW, then ______________. - the segment of the pie corresponding to VW would be the largest Statistics for a sample are denoted by ______ - x̄, s2 The symbol ∑ is used ...

A population is a collection of - All individuals, objects, or measurements of interest Statistics are used to report - The summary results of market surveys To infer something about a population we - Usually take a sample from the population There are 4 levels of measurement - Nominal, Ordinal, Interval & Ratio Data measured on a nominal scale can only be classified into - Categories Consumers rated a new DVD played as outstanding, very good, fair or poor. What level of measurement is thi...