does H, stand t diiu alld 0 of municate? (b) What does it communicate? 8. ( a) W

Question

does H, stand t diiu alld 0 of municate? (b) What does it communicate? 8. ( a) When do you use a one-tailed test? (b) When do you use a two-tailed test? 9. (a) What does "significant" convey about the results of an experiment? (b) Why is obtaining significant results a goal of behavioral research? 10. In a study we reject Ho. Which of the following statements are incorrect and why? (a) "Now we know that Ho is false." (b) "We have proof that our sample mean represents a particular ." (c) "We have proof that the independent variable causes scores to change as predicted." (d) "It is not pos- sible that the difference between X and is due to sampling error." (e) "We have evidence that the predicted relationship does not exist." 11. In a study we retain Ho Which of the following statements are incorrect and why? (al

Explanation / Answer

When we reject Ho then the incorrect statment is,
We have evidence that the predicted relationship does not exisist because from sample information we may belive that the predicted relationship exisist as the sample mean is unbiased estimate of the population mean.

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