I need some help with these questions please

In designing a variables sampling plan for substantive tests of details, the auditor would always define the population after doing which of the following? A. Choosing an audit sampling technique B. Determining the audit objective of the test C. Determining the method of selecting the sample D. Determining the sample size In the application of a classical variables sampling approach, the precision or sampling error desired by the auditor measured by the difference between a sample estimate and the corresponding population characteristic at a specified sampling risk is referred to as which of the following? A. Achieved allowance for sampling risk (AASR) B. Desired allowance for sampling risk (DASR) C. Risk of incorrect acceptance (RIA) D. Risk of incorrect rejection (RIR) Select the best answer. Using the laws of probability to measure the amount of uncertainty associated with observed sample results provided for the population is a characteristic that is found in all except which of the following sampling techniques? A. Attribute sampling B. Nonstatistical sampling C. Statistical sampling D. Variables sampling