Examlex
Analysis of brain-wave activity suggests that there are five stages of sleep: four differing depths of sleep and a fifth stage, known as:
Sampling Error
The difference between the sample statistic and the actual population parameter, which results from selecting a sample rather than conducting a census.
Confidence Level
The probability that a parameter lies within a specified range of values, often expressed as a percentage.
Proportion
A part, share, or number considered in comparative relation to a whole, often expressed as a fraction or percentage.
Confidence Interval
A series of values, taken from sampled data, believed to cover the value of a hidden population parameter.
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