1- The statistical process of using samples to estimate population parameters is known as: Statistical interference. Statistical inference. Statistical confidence. Descriptive statistics.

2- Power is defined as: the probability that you will retain/keep the null hypothesis if it is false. the probability that you will reject the null hypothesis if it is true. determined by your research hypothesis only. the probability that you will reject the null hypothesis if it is false.

3- The probability of rejecting the null hypothesis that is true is known as the: Type I error Type II error statistical power confidence level