Data set 29 ?Coin Weights? in Appendix B includes weights of 20 one-dollar coins. Given that the

Question:

Data set 29 ?Coin Weights? in Appendix B includes weights of 20 one-dollar coins. Given that the sample size is less than 30, what requirement must be met in order to treat the sample mean as a value from a normally distributed population? Identify three tools for verifying that requirement.

Data set 29