Examlex
Computer Services, Inc. wants to determine a confidence interval for the average CPU time of their teleprocessing transactions. A sample of 64 transactions yielded a mean of 6 seconds with a standard deviation of 0.8 seconds. Determine a 98% confidence interval for the average CPU time.
Population Mean
The average of a set of properties, characteristics, or values in a population.
Null Hypothesis
A statement in statistics that there is no significant difference or effect, used as a default assumption until evidence suggests otherwise.
Alternative Hypothesis
An assertion stating a significant difference or relationship exists in the context of statistical testing, contrary to the null hypothesis's claim of no effect.
Sample Data
A subset of data collected from a larger population, used to estimate or infer characteristics of the whole population.
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