Within ANOVA, the _____ is used to determine whether or not a relationship exists (if it is statistically significant).

Which of the following does not contribute to water pollution?

A. Domestic and municipal wastes B. Agricultural wastes C. Cars D. Natural Silt and Sedimentation

The online retailer Amazon must collect sales taxes on items Texas consumers purchase because

A) ?it has facilities in the state of Texas. B) ?it uses the Internet for consumer purchases. C) ?Texas is a member of the Streamlined Sales and Use Tax Governing Board. D) ?the Texas Supreme Court has ordered it to do so.