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On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21....

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. What can you conclude?

A. 2(0.21) = 0.42 < 0.5; the test is not statistically significant.

B. If the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant.

C. 0.21 > 0.05; the test is statistically significant.

D. If the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant.

E. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.

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Answer #1

For p-value of 0.21, it can be concluded that

If the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant

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