Chapter 14 - Data Collection and Sampling

Question 1

Define population

Answer 1

Collection / group of all items

Question 2

Define sample

Answer 2

Some subset of the population intended to represent the population

Question 3

Define sampling unit

Answer 3

Each individual member/element in the population that can be sampled

Question 4

Define sampling frame

Answer 4

A list of all sampling unit

Question 5

Advantage and disadvantage of census

Question 6

Advantage and disadvantage of sample

Question 7

Define Census

Answer 7

Data collected from the entire population

Question 8

Name 3 types of random sampling

Answer 8

• Simple random sample
• Systematic
• Stratified

Question 9

Simple random sample

1) What is it?
2) How to carry out? - EXAM Q MS
3) Pros
4) Cons

Question 10

Systematic Sample

1) What is it?
2) How to carry out? - EXAM Q MS
3) Pros
4) Cons

Question 11

Stratified Sampling

1) What is it?
2) How to carry out?
3) Pros
4) Cons

Question 12

4 types of non random sampling

Question 13

Q - How can I use quota sample, to select a sample of 30 fish

Question 14

What is continuous data

Answer 14

Can take any decimal value (possible with a specified range)

Question 15

Define Statistic

Answer 15

(A random variable) that is a function of the sample which contains no unknown quantities/parameters.

Question 16

Define Sampling Fraction

Answer 16

Proportion of available items that are actually sampled

Question 17

Cluster and quota sampling difference

Answer 17

In cluster (unlike quota)… 
Population are not divided based on particular characteristic 
Population are divided in a random or representative way