Researchers have postulated that because of differences in diet, Japanese children have a lower mean blood cholesterol level than U.S. children do. Suppose that the mean level for U.S. children is known to be 170. Furthermore, suppose the researchers obtained a sample of n = 100 Japanese children and obtained a sample mean x = 168 and a sample standard deviation s = 3.5 . Let u represent the true mean blood cholesterol level for Japanese children. Write the hypothesis for this test in symbolic form (as discussed in the lectures). Note: this question is set up as an essay question to allow you some freedom on how you respond. Edit View Insert Format Tools Table 12pt Par P T A