Examlex
The lower limit of the 90% confidence interval for ,where n = 64, = 70,and = 20,is 65.89.
Random Sample
A subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.
Confidence Interval
A range of values derived from sample data that is likely to contain the value of an unknown population parameter, with a certain level of confidence.
Retained Students
Students who have not progressed to the next academic grade or level as expected, often due to academic or other challenges.
Significance Level
A threshold for determining the probability of rejecting the null hypothesis in a statistical test, typically set before the data is collected.
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