Let's say the National Center for Health Statistics (NCHS) reports the mean BMI for adults is 23.5. Is the mean BMI for adults in a hypothetical Heart Study significantly different? In 300 participants the mean is 20 with a standard deviation of 3.5. What kind of an outcome is this? What kind of a sample is this? Set up the null and research hypotheses Select the test statistic Set up the decision rule Compute the test statistic using Excel What is your conclusion? \"PPPF