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What is the very first step of the scientific method?
Standard Error
The standard deviation of the sampling distribution of a statistic, typically the mean, indicating the variability of an estimate.
Mean
The mean is the average of a set of numbers, calculated by adding them all together and then dividing by the count of those numbers.
Z-statistic
A statistical metric that measures the number of standard deviations a data point is from the mean, used in hypothesis testing.
Z-test
A statistical assessment employed to ascertain if there's a difference between the means of two populations when variances are recognized and the sample size is substantial.
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