The Kruskal-Wallis test does not rely on any assumptions about the probability distributions but does require equal variances among the populations

Training should really only focus on improving the performance of below average salespeople.

a. true b. false

Which of the following conditions does not favor the use of a census (Table 11.1 in the text)?

A) There is high variance in the characteristic to be measured. B) The cost of nonsampling errors is low. C) The population is large. D) The cost of sampling errors is high.