A cample mean is computed from a population with a variance of 2.45. The sample size is 40. The standard error of the sample mean is closest to: A. 0.039. B. 0.247. C. 0.387.

Compare the population variance to the mean of the sample variances. Choose the correct answer below.     A. The population variance is equal to the square root of the mean of the sample variances.   B. The population variance is equal to the mean of the sample variances.   C. The population variance is equal to the square of the mean of the sample variances.

What technique compares dispersion with the average of data? Select one: a. Standard deviation b. Process capability c. Variance d. Coefficient of variation

In one-way analysis of variance, the F ratio is computed by: Select one: a. dividing the sum of squares between groups by the sum of squares within groups O b. dividing the sum of squares within groups by the sum of squares between groups O c. dividing the mean square between groups by the mean square within groups O d. dividing the mean square within groups by the mean square between groups