If the Populations Are Normally Distributed and the Variances of the Two

question 20

True/False

If the populations are normally distributed and the variances of the two populations are not equal, it is appropriate to use the "unpooled" formula to determine the t-statistic for the hypothesis test of the difference in the two population means.

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Definitions:

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of values from the mean.

Finite Population Correction Factor

A factor applied in sample size formulae to adjust for the effect of sampling without replacement from a finite population.

Mean Salary

The average amount of money earned by employees in a specific job, industry, or region, calculated by summing all salaries and dividing by the number of employees.

Standard Error

An estimate of the statistical accuracy of an estimate, showing how much the sample mean is expected to vary from the true population mean.