TOPIC 1. INTRODUCTION TO STATISTICAL ANALYSIS

Question 1

Science deals with the collection, presentation, analysis, and interpretation of scientific data

Answer 1

Statistics

Question 2

It is the foundation of statistics

Answer 2

Data

Question 3

Can be transformed into useful facts and information that a decision maker can use

Answer 3

Data

Question 4

It is the fundamental characteristic of data

Answer 4

Variability

Question 5

A successful observation of a system that do not produce the same result

Answer 5

Variability

Question 6

What are the two classification of statistics

Answer 6

Descriptive and inferential

Question 7

A classification of statistics through collecting,describing, and analyzing a set of data without drawing conclusion

Answer 7

Descriptive statistics

Question 8

A classification of statistic that predicts about the entire dataset

Answer 8

Inferential statistics

Question 9

A classification of statistics that is concerned with the analysis of a subset of data leading to predictions about the entire data set

Answer 9

Inferential statistics

Question 10

What are the four scales of measurements

Answer 10

Nominal, ordinal, interval, and ratio

Question 11

Scale of measurement that labels or categories

Answer 11

Nominal

Question 12

Scale of measurement through ranking or order

Answer 12

Ordinal

Question 13

Scale of measurement that has no true zero

Answer 13

Interval

Question 14

Scale of measurement that has a true zero

Answer 14

Ratio

Question 15

What are the four types of data

Answer 15

Primary data, secondary data, discrete data, and continuous data

Question 16

It is a type of data collected fresh or for the first time thus happened to be original

Answer 16

Primary data

Question 17

It is a type of data collected by someone else and have been passed through statistical process

Answer 17

Secondary data

Question 18

It is a type of data which whole numbers are often counted

Answer 18

Discrete data

Question 19

It is a type of data measured and can be presented as decimal

Answer 19

Continuous data

Question 20

What are the three measures of central location

Answer 20

Mean, median, and mode

Question 21

What are the three measures of variability

Answer 21

Range, variance, standard deviation

Question 22

Range can be determined by

Answer 22

Highest minus lowest

Question 23

It is the dispersion of data from mean

Answer 23

Variance

Question 24

A specified sample size has the same chance of being selected as any other sample of the same size

Answer 24

Random sampling

Question 25

What are the four types of random sampling

Answer 25

Simple random sampling, systematic random sampling, stratified random sampling, and cluster random sampling

Question 26

A type of random sampling which is determined by assigning a number and randomly select

Answer 26

Systematic random sampling

Question 27

It is a type of random sampling which is determined through grouping and selecting randomly

Answer 27

Stratified random sampling

Question 28

Three types of statistical studies

Answer 28

Observational studies, retrospective studies, and designed experiment

Question 29

It is type of statistical studies which involve observing and analyzing phenomena as they occur naturally without intervening manipulating variables

Answer 29

Observational studies

Question 30

It is a statistical status that studies past events or records to identify patterns, relationship or potential causes and effects

Answer 30

Retrospective studies

Question 31

It is a type of statistical studies that intentionally manipulating variables under controlled conditions to observe their effects

Answer 31

Designed experiment