What is the basic difference between the concepts of race and ethnicity?

Which of the following best describes Brazil's 1988 constitution?

a. a detailed constitution that tries to ensure unrealistic economic and social rights b. a vague constitution that allows the president inordinate flexibility to enact whatever policies the president deems appropriate c. a conservative constitution that is mostly designed to protect the rights of the wealthy and other elites d. a constitution that concentrates power in the Congress and gives ordinary Brazilians no meaningful way to participate

What is the correct order of steps in testing a hypothesis?

a) statement of null hypothesis, setting level of risk, selection of test statistic b) statement of null hypothesis, computation of test statistic, selection of test statistic c) selection of test statistic, comparison of obtained value to critical value, computation of test statistic d) selection of test statistic, computation of test statistic, statement of null hypothesis