## 15.7 Quick review questions

1. True or false: Parameters describe populations.
2. True or false: Both $$\bar{x}$$ and $$\mu$$ are statistics.
3. True or false: The value of a statistic is likely to be different in every sample.
4. True or false: Sampling variation refers to how the value of a statistic varies from sample to sample.
5. True or false: The initial assumption is made about the sample statistic.