Random Samples of Size 525 Are Taken from an Infinite

question 41

Multiple Choice

Random samples of size 525 are taken from an infinite population whose population proportion is 0.3. The standard deviation of the sample proportions (i.e., the standard error of the proportion) is

• A)0.0004
• B)0.2100
• C)0.3000
• D)0.0200

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Definitions:

Laboratory Observation

A research method where subjects are observed in a controlled environment to ensure accuracy of findings.

Control

The power or authority to direct, manage, or govern actions or outcomes.

Questionnaire

A structured series of questions used to gather information from respondents for research purposes.

Written Interview

A method of gathering information or assessing qualifications where questions are sent in written form for the respondent to answer also in writing.