In a Sample Survey, It Is Common Practice to Use

question 5

Multiple Choice

In a sample survey, it is common practice to use a t value of (when approximating a 95% confidence interval)

• A) 1.
• B) 2.
• C) 3.
• D) 4.

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Definitions:

Dependent Variable

In experimentation, it's the variable being tested and measured, which is expected to change under the influence of the independent variable.

Normal Distribution

A bell-shaped curve that represents the distribution of many types of data where most occurrences take place in the middle of the range.

Experimenter Bias

A form of bias in research where the expectations or preferences of the researcher inadvertently affect the outcome of the study.

Placebo Effect

The phenomenon where an individual experiences a perceived improvement in condition because they believe they are receiving treatment, despite the treatment having no therapeutic effect.