A. Directions: Read each statement and determine whether the statement is true o

Question

A. Directions: Read each statement and determine whether the statement is true or false. Write true or false in the blank provided.

__________

(1.)

Picking twenty (20) names in a row from a phone book is an example of random sampling.

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(2.)

When a sample is chosen at random from the population, it is said to be biased.

__________

(3.)

If 1/3 of a factory is female and we want to sample workers at this factory, then approximately 1/3 of the sample should be female.

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(4.)

In random sampling, the researcher divides the population into subgroups according to certain characteristics.

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(5.)

Cluster sampling might be used to see if the people in Forest Oaks wanted to have a community watch program.

__________

(6.)

A correct technique to use in obtaining a random sample would be to ask a question by radio and have the listeners phone in with an answer.

__________

(1.)

Picking twenty (20) names in a row from a phone book is an example of random sampling.

__________

(2.)

When a sample is chosen at random from the population, it is said to be biased.

__________

(3.)

If 1/3 of a factory is female and we want to sample workers at this factory, then approximately 1/3 of the sample should be female.

__________

(4.)

In random sampling, the researcher divides the population into subgroups according to certain characteristics.

__________

(5.)

Cluster sampling might be used to see if the people in Forest Oaks wanted to have a community watch program.

__________

(6.)

A correct technique to use in obtaining a random sample would be to ask a question by radio and have the listeners phone in with an answer.

Explanation / Answer

1. False. 20 names in a raw will probably start from the same letter. This is not random

2 False. Since, a sample is chosen at random, it is assumed to be unbiased

3 True. Sample should be representative of the populaion

4 False. In random sampling, subgroups are mixture and representative of the population. If we use characteristics to divide, it will be a biased experiment

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