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1. WELCOME TO THE
WELCOME TO THE
WONDERFUL WORLD
WONDERFUL WORLD
OF STATISTICS!
OF STATISTICS!
STATISTICS 101
By:Ms.Lyneth

2. BASIC STATISTICAL
BASIC STATISTICAL
TESTS (ANALYZING
TESTS (ANALYZING
DATA)
DATA)

3. pertains to collecting, organizing, presenting,
analyzing, and interpreting data to assist in
making more effective decisions.
STATISTICS
STATISTICS
"Data are useless if they do
not talk and are not
analyzed."

4. Roles of Statistics
Roles of Statistics
Establishes the level of reliability
1
1
2
2
Guides the researcher in drawing
out conclusions.
3
3
4
4
Has the basis for inferences
Makes objective, definite, and
precise description of data.

5. Nature of the problem
Nature of the data
gathered

6. Statistical Methods
Statistical Methods
Descriptive
Inferential

7. Descriptive Statistics
Descriptive Statistics
It describes the data that
have been collected on a
research sample.
Describe "what is" about the
data.

8. Inferential Statistics
Inferential Statistics
Used to infer the
characteristics of the
population based on the
estimate gathered from
representative samples.

9. Inferential Statistics
Inferential Statistics
Estimation
Hypothesis
Testing

11. MEASURES OF CENTRAL TENDENCY
The arithmetic
average of all
the scores.
The middle
value of rank
ordered data.
The number that
appears most
frequently.

12. MEASURES OF DISPERSION OR VARIABILITY
The extent to which the
scores differ from each
other or how
spread out the scores
are.
Convey information
regarding the
amount of variability
present in a set of
data.

14. Statistical Methods
Statistical Methods
Inferential

15. PARAMETRIC TESTS
NON- PARAMETRIC
TESTS

17. Thank you!
Thank you!