True or False 1) If the obtained sample data are in the critical region, then we could...

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Statistics

True or False
1) If the obtained sample data are in the critical region, thenwe could conclude that the data provide support for the nullhypothesis.
2) If a researcher is predicting that a treatment will increasescores, then the critical region for a directional test will be inthe right-hand tail
3) Whenever the statistical decision is to reject the nullhypothesis, there is risk of a type I error
4)In a type II error, the experimenter concludes there isevidence for an effect when in fact an effect does not exist
5) All other things being equal (Mean, Standard Deviation, M anda), You are more likely to make a Type I error with a sample of n=4than with a sample of n=11
6) If the null-hypothesis is rejected using a one-tailed test,then it certainly would be rejected if the researcher used atwo-tailed test.
7) Increasing the alpha level (for example from .01 to .05) willdecrease the size of the critical region.
8) The t-distribution is symmetrical and has a mean of 0
9) The t statistic is used for hypothesis tests in situationswhere the population standard deviation (or variance) isunknown.

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1 FALSE If the obtained sample data are in the critical region then we could conclude that the data provide reject for the null hypothesis and support in the favour of the alternative hypothesis 2 TRUE If a researcher is predicting that a treatment will increase scores then the critical region for a directional See Answer

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