Answer the following statement(s) true (T) or false (F)
1. When using the ?2 test statistic, “expected” frequencies are those that researchers observe in the sample.
2. The ?2 test statistic is useful for determining the direction of relationships.
3. The concept of statistical significance relates to the matter of confidence.
4. The null hypothesis is stated in Greek letters because the null hypothesis refers to relations in the population.
5. The first step in hypothesis testing is stating the null hypothesis.
1.false
2.false
3.true
4.true
5.true
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The massive retaliation doctrine
a. said that the U.S. would annihilate Europe if it posed a nuclear threat to the U.S. b. said that the Soviets would annihilate the U.S. if it put missiles in Europe. c. was the deterrent between the Soviets and the Communist Chinese. d. said that the U.S. would strike back against an aggressor with overwhelming force. e. committed the U.S. to a policy of preemption.
A __________ distribution is one in which the most frequently occurring scores are not in the middle
a. normal b. skewed c. research d. central