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riadik2000 [5.3K]
3 years ago
7

Even if a treatment is effective in the real world (it has an effect), it is still possible to obtain a sample mean that is so s

imilar to the population mean that the sample mean doesn't fall in the critical, or rejection, region. If this happens, you are likely to ____.
Social Studies
1 answer:
notka56 [123]3 years ago
5 0

Answer:

fail to reject the null hypothesis and make a type II error

Explanation:

Even if a treatment is effective in the real world (it has an effect), it is still possible to obtain a sample mean that is so similar to the population mean that the sample mean doesn't fall in the critical, or rejection, region. If this happens, you are likely to <u>fail to reject the null hypothesis and make a type II error</u>.

Since that sample mean is so similar to the population mean, the treatment effect may not be detected on analysis even though it is infact significant, this will cause the research to erroneously concluded that the treatment effect is zero and accept the null hypothesis when it is actually not zero. This is a type II error. Type II error in statistics means the non-rejection of a false null hypothesis and type I error is the rejection of a correct null hypothesis.

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