Consider the following statements pertaining to sampling theory :

A. The standard deviation of the sampling distribution of a statistic is known as its standard error.

B. The precision of the sample estimate of some population parameter is the reciprocal of the standard error of the sampling distribution of the estimate.

C. A Type - I error in hypothesis testing occurs when we accept a wrong null hypothesis.

D. A Type - II error in hypothesis testing occurs when we reject a true null hypothesis.

Choose the correct answer from the options given below