The correct answer is a) Dr. Wong could publish his data in a scientific journal and have different investigators try to reproduce his results. This is due to external validity, when data from a research can be confirm and reproduced, after selecting a proper sample size and determine alfa and beta power, for the study. If no bias exists, other researchers should be able to replicate and validate Dr’s Wong Results.
B and C options are both unacceptable due to ethical issues, and D is incorrect based on the central limit theorem; if Dr’s Wong sample is at least 30 in number (for each group: A=test group and B=control group) the statistical inferences can be translated into larger populations. Smaller samples than this, are not recommended due to bias and internal validity.
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888, enacted September 1, 1937), formally the "United States Housing Act of 1937" and sometimes called the Wagner–Steagall Act, provided for subsidies to be paid from the U.S. government to local public housing agencies (LHAs) to improve living conditions for low-income families.
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Bethune became one of the leading civil rights activists of her era. [Quick Fun Fact]: (Bethune was the only woman of color at the founding conference of the United Nations in 1945) She led a group of african american women to vote after the 1920 ratification of the 19th Amendment to the Constitution, to which giving the women the right to vote. She later became the first African American woman to have a monument dedicated to her in Washington, D.C.