Lecture 1. Descriptive statistics includes statistical procedures that we use to describe the population we are studying. The data could be collected from either a sample or a population‚ but the results help us organize and describe data. Descriptive statistics can only be used to describe the group that is being studying. That is‚ the results cannot be generalized to any larger group. Inferential statistics is concerned with making predictions or inferences about a population from observations
Premium Arithmetic mean Median Addition
Concepts 1. What is Inferential statistics? Inferential statistics uses observations of past occurrences or available data i.e. descriptive statistics to make decisions about future possibilities and/or the nature of the entire body of data. Inferential statistics draws conclusions or makes interpretations‚ predictions and inferences about a population based upon an analysis of a sample. 2. Give 2 different techniques which are used in descriptive statistics to represent the data. Tables or
Premium Measurement Sampling
CLICK TO DOWNLOAD PSY 325 Statistics for Behavioral and Social Science‚ Ashford Week 1‚ Final Paper Topic Selection For the Final Paper‚ you will identify three to five research studies from peer-reviewed sources that were published within the last ten years‚ which investigate a particular social science problem or topic. The Final Paper will focus on critiquing the varying statistical approaches used in each of these studies. Your assignment this week is to identify the topic that you intend
Premium Research Scientific method Quantitative research
MANAGEMENT SCIENCE HOMEWORK 2 4.28 a) The sale of the tables and chairs represents the total profit. The production plan includes oak tables and chairs‚ cherry tables and chairs‚ and pine tables and chairs. b) Labor‚ cherry wood‚ oak wood‚ pine wood‚ minimum oak tables‚ and minimum cherry tables are the binding constraints. c) The range over which the unit profit for oak chairs can change without changing the production plan is between $35 and infinity. d) The range over which the amount
Premium
universally. The scale is chosen depending on the information that the data is intending to represent. The four scales of measurement of data are nominal‚ ordinal‚ interval‚ and ratio. Each plays a different‚ yet very important role in the world of statistic a) Nominal scale Is the lowest level in scales of measurement? Is a way of grouping behavior‚ where actual numbers are simply labels or identifiers. -they do not put subjects in any particular order: no logical basis for the answers in each
Premium Probability theory Poisson distribution Normal distribution
GM 03 Business Statistics Assignment II Assignment Code: 2012 GM03 B2 Last Date of Submission: 15th November 2012 Maximum Marks: 100 Attempt all the questions. All questions are compulsory and carry equal marks. SECTION – A 1. a) Explain the need for different forecasting techniques. How can we evaluate as to how good is our forecast. b) Collect data on the amount of expenditure you do each day for the next 25 days and
Premium Statistics Regression analysis Forecasting
s |COLLEGE OF THE BAHAMAS | |BUSINESS STATISTICS | |FIRST INTERM EXAM | |COURSE: STAT201
Premium Frequency distribution Summary statistics Standard deviation
distribution function for 100 normal random numbers. The K-S test is based on the maximum distance between these two curves. Characteristics and Limitations of the K-S TestAn attractive feature of this test is that the distribution of the K-S test statistic itself does not depend on the underlying cumulative distribution function being tested. Another advantage is that it is an exact test (the chi-square goodness-of-fit test depends on an adequate sample size for the approximations to be valid). Despite
Premium Normal distribution
STAT 600 Statistics and Quantitative Analysis PROJECT: Stock return estimation The project must be done by 6-15 a.m. October‚ 16th. You should submit your projects before the class begins. This is a group project. Read the course outline for general guidelines. Good luck! The project is closely related to Lectures 1-5 of the class. Today is September 15‚ 2013 and you have just started your new job with a financial planning firm. In addition to studying for all your license exams‚ you have
Premium Standard deviation Arithmetic mean Statistics
Major Statistics Assignment Mary Grace Rivero 050853639 CNUR860-011 Vaska Micevski Friday‚ March 30‚ 2012 Major Statistics Assignment This major statistics assignment will finally pull together everything that was learned in this course. The application of all content within this course will be incorporated to three different research scenarios. Within each scenario‚ hypothesis testing will be done‚ followed by a discussion of relevant descriptive statistics and finally‚ a discussion
Premium Statistical hypothesis testing Variance Standard deviation