TECHNIQUES The rest of this handbook consists of practical descriptions, instructions, and examples of the following techniques: Problem Identification
Histogram (p. 36) Pareto Chart (p. 17) Cause & Effect (p. 24) Brainstorming (p. 69) Run Chart (p. 30) Stratification (p. 76) Scatter Diagram (p. 44) Control...
Destructive Tests 5. Greater accuracy of some samples
Example 1.1: For each of the cases, indicate the following: (a) What is the population and what is the sample? (b) What is the inference to be made? (c) is it reasonable to assume that the sample will be representative of the population? Why or...
information, such as:
(a) Runs made by a batsman in the last 10 test matches.
(b) Number of wickets taken by a bowler in the last 10 ODIs.
(c) Marks scored by the students of your class in the Mathematics unit test.
(d) Number of story books read by each of your friends etc.
The information collected in...
in higher education. While there are many critics of the practice it still finds wide spread acceptance particularly in science classes. Advocates believe that in large classes student ability is likely to be normally distributed. If test scores are also normally distributed instructors and students tend...
MANAGEMENT SCHOOL MODULE: BUSINESS STATISTICS I/STATISTICS FOR FINANCE I Unit 1.- One-dimension Frequency Distributions
1. The next table shows the number of tourists (thousands) per Andalusian province during 2010: Province Almería Num. Tourists 2.003 a) b) c) d) Cádiz 2.256 Córdoba 938 Granada 2.796...
following as an algebraic expression using x as the variable: The sum of a number and -8
A. -8 + x
D. -8 - x
2) Write the following as an algebraic expression using x as the variable: A number subtracted from –7
A. –7 – x
C. x – 7
than six times a number
A. 6x – 12 [(Six times a number means 6x, and twelve less mean -12)]
D. 12 – 6x
2) Write the following as an algebraic expression using x as the variable: The sum of a number and -8
A. -8 + x [(let x be the variable number, therefore sum of...
Such requirements which are expected from competing products bring the concept of quality in to picture.
If we say that quality plays great role for the success of products, how do we define it? Different authors have defined it differently with, of course, similar concepts.
Some of its definitions...
yourself “What is this statistic/graph telling me?”
e) Write your hypotheses. These should follow logically from the literature on your topic AND be
testable using the analyses you have available. Don‟t just hypothesise that you will find what your
statistics happen to show – this can lead...
Interval data ( cross-sectional data )
A. Histogram ~ A histogram is created by drawing rectangles whose bases are the class intervals (classes) and and whose heights are the frequencies. Determining number of class intervals No. of Observations No. of Classes 50,000 17 - 20
~ Alternatively using Sturges's...
classiﬁcation, where we show the trade-off between computational efﬁciency and accuracy. As a basis, we use the Bag-ofWords algorithm that in the 2008 benchmarks of TRECVID and PASCAL lead to the best performance scores. We divide the evaluation in three steps: 1) Descriptor Extraction, where we evaluate SIFT...
uncertain number is a shape
* A distribution
* “Uncertain numbers”
* Risk is subjective
* Give-me-a-number mentality
* Management of uncertainty: “Commitment to trade short-term rewards for long-term gains”
* Flat Shape
* To display a distribution: a histogram
Speci…c topics in these notes also have associated video …les or powerpoint shows that
can be accessed at www.watstat.ca. Where possible we reference these videos in the text.
Statistical Sciences are concerned with...
managers sensés of décisions making. He can use analytical tools in a wise manner only he comprehends fully the underlying assumptions : what the analyses acheives, what compromises the model used makes with reality, and above all how the conclusions derived are to be adapted to the dynamic environmental...
Summarizing and Graphing Data
In this chapter we will look at methods of descriptive statistics. We will concentrate on how to condense and organize data. We will look at the following:
1. Collect raw data
2. Organize data in a frequency distribution
audience to help out in this project to raise enough funds to carry out the project.
(b)Briefly outline the problem that the PTA needs to address. What actions can the members of the association take?
The problems that PTA needs to address are:
1. The poor performance of the students in the subjects...
-the characteristic of an individual to be measured or observed
-ex: how many kids, what college attended..
Types of Variables/Data
1) Quantitative – variables are numerical
-ex: number of siblings
a. discrete: how many (result of counting)
b. continuous: how much (has...
Completing Laboratory Reports.
Statistical Analysis in the Social Sciences.
Laboratory Class One: Introduction.
Laboratory Classes Two and Three: Research Methods: Sex Differences and Thinking.
Laboratory Class Four: Memory 1: The Past Imperfect.