1.Here is an example of application of the central limit theorem.

2.In this example, we want to estimate the probability that a group of patients will have a mean HDL cholesterol level of more than 60 given historical data of a mean of 54 and standard deviation of 17 in adults of similar ages.

3.In addition to the z-score calculation, you need to refer to Appendix Table 1 of the textbook.