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Evaluate the limit.
Significant
In statistics, indicating that the results of an analysis are unlikely to have occurred purely by chance, at a specified level of probability.
Z-test
A method of statistical analysis that evaluates whether there is a significant difference between the means of two populations, given known variances and a large sample size.
µ = 109
Represents the mean (µ) of a dataset or distribution, here specifically stated as 109.
Z-statistic
A specific kind of norm score that shows the number of standard deviations by which an individual item deviates from the distribution's average.
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