由于r为样本相关系数，故需对其作假设检验后方可说明X与Y间有无直线相关关系。r的检验可用或。
A. t 检验，直接查表法
B. F 检验，直接查表法
C. t 检验，F 检验
D. t 检验，方差分析
Which of the following statements about causal reasoning is NOT true？
A. It is one of the basic methods of reasoning used in public speaking.
B. Reasoning that seeks to establish the relationship between causes and effects is causal reasoning.
C. We do not use causal reasoning daily.
D. In public speaking, persuaders often use causal reasoning to strengthen their claim.
Which of the following statements about Analogical reasoning is true？
Analogical reasoning is a method of processing information.
B. Analogical reasoning focuses on the differences between the new and the understood.
C. Analogical reasoning uses contrast to make the understanding of the new more easily.
D. Analogical reasoning can only be used to persuade.
Which of the following is NOT one of the four basic methods of reasoning used in public speaking.
A. Reasoning from specific instances
B. Reasoning from facts
Causal reasoning
D. Analogical reasoning
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