Chapter 8 excercises

# Chapter 8 excercises - Tests of Hypotheses Based on a...

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Chapter 8 Tests of Hypotheses Based on a Single Sample Fill-in-the-Blank Questions 1. In many situations, the alternative hypothesis is referred to as the __________ hypothesis, since it is the statement the researcher would really like to validate. 2. The __________ hypothesis should be identified with the hypothesis of no change, no difference, no improvement, and son on. 3. An engineer has suggested a change in the production process in the belief that it will result in a reduced defective rate. Let p denote the true proportion of defective items resulting from the changed process, and that 5% of items produced by a manufacturer during a certain period were defective. Then the research hypothesis is the assertion that __________. 4. In our treatment of hypothesis testing, the __________ hypothesis will always be stated as an equality claim. 5. The null hypothesis will be rejected if and only if the observed or computed __________ value falls in the __________. 6. A __________ error involves not rejecting the null hypothesis is false. 7. A __________ error consists of rejecting the null hypothesis is true. 8. The probabilities of type I and type II errors are traditionally denoted by the Greek letters __________ and __________, respectively. 9. The rejection region is called __________ if it consists only of large values of the test statistic. 10. The rejection region is called __________ if it consists only of small values of the test statistic. 11. A __________ error is usually more serious than a __________ error. 12. The value that represents the probability of type I error is often referred to as the __________ of the test. 13.

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Chapter 8 excercises - Tests of Hypotheses Based on a...

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