2. INTRODUCTION
“Drawing conclusions and
understanding more about the sources of our data is
the goal of statistical analysis”
-kachigan
computers can perform calculations
in just a few seconds that human beings need weeks to
do by hand.
3. COMPUTERS
A computer is an electronic device that can perform a
variety of operations in accordance with a set of
instructions called program.
Computer is an electronic device that can store data
and information in its memory, process them and
produce the desired results.
A computer is an electronic device that accepts input
data, manipulates the data and produces the output.
4. MEANING
The word Computer is obtained from the Latin
word “Compute” which means “to calculate” or
“to count”
C -Calculate
O-Operate
M-Memorize
P-Print
U-Update
T-Tabulate
E-Edit
R-Response
5. GENERATION OF COMPUTER
Generation A stage in the development
of a product, usually a technical one.
The term computer generation is often used
in relation to the hardware of computers. Each phase
of computer development is known as a separate
generation of computers.
6. First generation computer
EX:ENIAC
Second generation computer
EX:IBM 1400 and Honeywell 400
Third generation computer
EX:IBM 360 and Honeywell 6000
Fourth generation computer
EX:Microprocessor, Today’s computer
Fifth generation computer
7. GENERATION OF COMPUTER
GENERATION YEAR COMPONENT USED
FIRST 1945 – 1955 Vacuum Tubes
SECOND 1956 – 1965 Transistors
THIRD 1966 – 1975 Integrated Circuit Chips
FOURTH 1976 – Present Microprocessor
FIFTH Coming Generation Artificial Intelligence.
8. TYPES OF COMPUTER
Based on type/character
Digital computer
Analog computer
Hybrid computer
9. Based on purpose…
General purpose
Specific purpose
Based on performance…
Super computer
Mainframe computer
Mini computer
Micro computer
12. STATISTICAL CALCULATIONS
It perform many calculations easily and
quickly.
computations of mean, standard
deviation, correlation coefficient, t test,
analysis of variance, multiple
regression, factor analysis are just a few
of the programs and subprograms that
are available.
13. DATA ANALYSIS
Excel has a built in statistical package for
carrying out data analysis .This item is usually hidden
and can be brought out to the menu by clicking the
button tools
Start program Ms Office Ms Excel
Start Program SPSS Statistics 17.0spss
statistics17.0
14. DESCRIPTIVE STATISTICS
The first broad function of statistics is to
describe the data in an interpretable form. This can be
done either in terms of numerical values called
summary statistics or by showing the data or graphs.
16. ANALYSIS OF DATA
Once the data are coded, they are then
ready to be stored on the computer’s hard disk. They
may be entered directly into a spreadsheet, the
statistical software’s data editor or copied from one
place on the computer and pasted into the statistical
software editor.
Example:
Enter the MASTER TABLE
17.
18. If you type the background variable then you click
the data view in the spreadsheet. In SPSS package the
Variable view is shown in horizontally.
Analyze Descriptive statistics
Frequencies
To click the menu in Analyze then it will be shown
in many calculations formula tables.
19.
20. USES
It is used for finding descriptive statistic.
It is used for calculating correlation coefficient
like product moment correlation, multiple
correlations.
It is used for calculating t values for comparing
groups.
It is used for finding cross tables and chi –
square.
It is used for data reduction.(ie)it is used for
data analysis.
21. It is used for calculating ANOVA value for
comparing groups.
It is used for predicting the results by
using regression equation.
It is used for drawing graphs.
It can filter the data and perform analysis
only in the selected cases.
