A large midwestern state administers a statewide mathematics exam that has an average of 500. A researcher is designing a study to test the idea that students from charter schools score higher than average on the test. The researcher plans to take a random sample of 100 students from charter schools. He will then carry out a test of hypothesis using a significance level of 0.01. Which of the following will increase the power of this test? (Pick all that apply, even if they are not the recommended way to increase power.) Select one or more: If the researcher talks with 500 students. If the researcher talks with 50 students.