MCQs Hypothesis Testing 1

1. Which of the following is an assumption underlying the use of the t-distributions?

2. Herbicide A has been used for years in order to kill a particular type of weed. An experiment is to be conducted in order to see whether a new herbicide, Herbicide B, is more effective than Herbicide A. Herbicide A  will continue to be used unless there is sufficient evidence that Herbicide B is more effective. The alternative hypothesis in this problem is

3. For t distribution, increasing the sample size, the effect will be on

4. Which of the following is a true statement, for comparing the t distributions with standard normal,

5. Analysis of Variance (ANOVA) is a test for equality of

6. The critical value of a test statistic is determined from

7. The t distributions are

8. Condition for applying the Central Limit Theorem (CLT) which approximates the sampling distribution of the mean with a normal distribution is?

9. If we reject the null hypothesis, we might be making

10. A parameter is a ————- quantity

11. $1 – \alpha$ is the probability of

12. What is the probability of a type II error when $\alpha=0.05$ ?