Applied Statistics for Social and Management Sciences by Abdul Quader Miah (auth.)

By Abdul Quader Miah (auth.)

This publication addresses the appliance of statistical options and techniques throughout a variety of disciplines. whereas its major concentration is at the program of statistical tools, theoretical elements also are supplied as primary heritage details. It bargains a scientific interpretation of effects frequently found quite often descriptions of equipment and strategies comparable to linear and non-linear regression. SPSS is additionally utilized in all of the program elements. The presentation of knowledge within the kind of tables and graphs in the course of the e-book not just publications clients, but additionally explains the statistical software and assists readers in analyzing very important positive factors. The research of statistical facts is gifted continually in the course of the textual content. educational researchers, practitioners and different clients who paintings with statistical info will reap the benefits of interpreting Applied records for Social and administration Sciences.

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It is a theoretical distribution. An example of frequency polygon is given in Fig. 14. Fig. 11 Thailand debt situation. 9 2000 2002 2004 2006 Year 2008 2010 24 2 Presentation of Statistical Data Fig. 12 Thailand debt as percentage of GDP. Data Source Ministry of Finance Thailand's Debt 80 70 % of GDP 60 50 40 30 20 10 0 2000 2002 2004 2006 2008 2010 Year Fig. 13 Comparison of economic outlook. 00 2006 2007 2008 Year Fig. 2 Graphical Presentation 25 Problems 2:1 The Canadian International Development Agency (CIDA) has been providing financial support to AIT.

Instead of that only one stem can be shown after stem 29 as shown hereafter. Stem Leaf 29 HI 6 375 The other problem of having too many leaves in a stem can be handled by breaking the stem into 2–5 parts. Data in the crushing strength of bricks may be used to illustrate this technique. Let us suppose that we want to divide the stem 21 into 2 parts. The first part should contain the leaves from 0 to 4 and the second part of the stem should contain the leaves from 5 to 9. The resulting diagram would look like the following: Stem Leaf 21 21 0, 0, 0, 0, 1, 2, 3, 3, 4, 4 5, 5, 5, 5, 5, 5, 7, 7, 8, 9, 9 If we want to divide stem 21 into 5 parts, then the resulting diagram would look like the following: Stem Leaf 21 21 21 21 21 0, 2, 4, 7, 8, 0, 3, 4, 7 9, 0, 0, 1 3 5, 5, 5, 5, 5, 5 9 It would be noted that a stem-and-leaf diagram is a combination of tabular and graphical display and looks like a histogram.

To construct a stem-and-leaf diagram, each number xi is divided into two parts: a stem, consisting of one or more of the leading digits, and a leaf, consisting of the remaining digits. Example 7 The data in crushing strength of bricks example are used to construct the stem-and-leaf diagram. The observations range from 126 to 296. So the values 12, 13, 14, … 29 are selected as stems. The resulting diagrams are shown in Figs. 5. 52 3 Descriptive Statistics Stem 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Total Leaf f 1 1 1 3 3 4 6 7 10 21 14 9 8 5 2 2 2 1 100 6 7 7 5, 8, 0 5, 4, 0 0, 8, 3, 1 4, 1, 5, 5, 5, 1 3, 2, 2, 6, 8, 5, 8 8, 0, 4, 3, 8, 0, 4, 0, 7, 1 5, 3, 8, 0, 7, 5, 4, 0, 7, 5, 0, 4, 9, 3, 5, 5, 2, 1, 0, 5, 9 4, 6, 2, 7, 6, 2, 1, 4, 4, 8, 4, 5, 8, 0 6, 1, 0, 1, 3, 3, 0, 7, 3 9, 9, 8, 3, 4, 6, 0, 8 7, 0, 8, 0, 1 8, 7 1, 8 4, 7 6 Fig.

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