Question

All else being equal, increasing the mean difference between groups will ______ the likelihood of finding a significant p value from a t test

Answer 1

All else being equal, increasing the mean difference between groups will increase the likelihood of finding a significant p-value from a t-test.

Statistical significance means that the observed results in the sample are unusual if the null hypothesis is accepted as true. if you are testing a hypothesis using the P-value approach and the P-value is large, you are rejecting the null hypothesis.

The smaller the p-value, the more evidence against the null hypothesis. therefore, if an investor finds that his p-value is 0.001, there is strong evidence against the null hypothesis and the investor is confident that portfolio returns and S&P 500 returns are not comparable.

The P-value represents the probability that, for a given statistical model, the statistical summary will match or exceed the actual observed results if the null hypothesis is true.

Learn more about P-values here brainly.com/question/14189134

#SPJ4