Question

What is the computed p-value?

a. The computed p-value is the probability of observing a test statistic at least as big as the one we have if there were no effect in the population (i.e., the null hypothesis were true).

b. Given the results are due to chance, the probability that the null hypothesis (H0) is true is the computed p-value.

c. Given the results are not due to chance, the probability that the null hypothesis (H0) is false is the computed p-value.

d. The computed p-value is the probability that the results would be replicated if the experiment was conducted a second time.

Answer 1

The computed p-value is the probability of observing a test statistic at least as big as the one we have if there were no effect in the population. It is used to determine if the results are statistically significant.

Step-by-step explanation:

The computed p-value is the probability of observing a test statistic at least as big as the one we have if there were no effect in the population (i.e., the null hypothesis were true).

The p-value is used to determine if the results are statistically significant, meaning that the observed test statistic is unlikely to occur by chance if the null hypothesis is true.

If the p-value is smaller than a chosen level of significance, typically 0.05 or 0.01, we reject the null hypothesis in favor of the alternative hypothesis.