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A questionnaire includes the following question,measured on a 5-point Likert scale: "To what extent are you satisfied with the appearance and the service of the shop-assistants?"
This question is an example of a:
Confidence Interval
A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter at a given confidence level.
Sample Proportion
The fraction or percentage of the sample that represents a particular trait or characteristic of interest.
Null Hypothesis
A hypothesis that assumes no significant difference or effect exists between specified populations or variables.
Population Proportion
The fraction or percentage of a population that shares a particular characteristic or attribute.
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