Chapter 2 elementary statistics summarizing raw data in frequency distribution table 1/37 chapter 2 elementary statistics what is a raw data the number of classes k for a raw data with sample size n must be a whole number ranging from 5 to 20, and it is usually given, or this is where we can use the sorted raw data 27/37 chapter 2. 13-27(pps sampling) you decide to use statistical sampling to test the reasonableness of the recorded book value of the key west company’s accounts receivable because the company’s internal control procedures over accounts receivable have been evaluated by you as excellent and you believe few misstatements will be found,you decide to use. Ch 9 techniques 27 audit sampling sampling used only for those accounts where it is appropriate when large number transactions within one account probability proportional to size (pps) nonstatistical sampling classical variables sampling (appendix) gbw 8th ed. Chapter 8-sample & sampling techniques 1 sample and sampling techniques 13 sampling theory• is developed to determine mathematically the most effective way to acquire a sample that would accurately reflect the population under study 27 2 systematic sampling technique• type of probability sampling which selects samples by.
The auditor must use professional judgment to determine the sample size, whether the auditor is using statistical or nonstatistical sampling in statistical sampling, the auditor will quantify the relevant factors. B in a probability proportional to size (pps) sample, all population physical audit units with an amount equal to or greater than the amount of the interval will automatically be included in the sample if the auditor uses: a random selection. Portland public schools will join thousands of other school districts in the united states in participating in the great shakeout, a national earthquake preparedness event on wednesday, oct 18 at 10:18 am.
A) statistical techniques involve use of statistical and probability theories to determine sample size and quantitatively evaluate the sample results non statistical techniques refer to sampling techniques which involve auditor’s judgment in ascertaining (i) sample size (ii) evaluating sample results. An advantage of using statistical over non-statistical sampling methods in tests of controls is that the statistical methods a afford greater assurance than a non-statistical sample of equal size. Variables sampling plan determine objectives of test define population choose sampling technique determine sample size determine method of sample selection perform sampling plan evaluate sample results 24 gbw 8th ed 9. Systematic sampling is a random sampling technique which is frequently chosen by researchers for its simplicity and its periodic quality the members of his sample will be individuals 5, 13, 21, 29, 37, 45, 53, 61, 69, 77, 85, 93 5 statistical sampling search over 500 articles on psychology, science, and experiments.
Cluster sampling •a cluster sample is a probability sample in which each sampling unit is a collection or a group of elements •it is useful when: (i)a list of elements of the population is not available but it is easy to obtain a list of clusters. The sampling issues in quantitative research ali deli̇ce abstract coding is used to analyze the data and results are presented by using desc-riptive statistics most of the theses were found to include a few lines of information on sampling technique, sample size, effect size, mathematics education, examining dis-sertations. 26 using minitab to calculate power and minimum sample size if, in the population, there really is a difference of 08 between the members of the two.
For example, if you expect to lose about 20% of the sample, then the sample size should be increased by a factor of 1 / (1 - 02) or 125 that is, enroll 25% more subjects that the sample size calculation called for. Administrators can tell us we notice anecdotally or through qualitative research that a particular subgroup of students is experiencing higher risk we decide to do everyone and go from there 3 factors that influence sample representativeness sampling procedure sample size participation (response) when might you sample the entire population. Two sample t-test 28 - module 28 sample size determination 1 one-sample t-test and paired t-test 2 two sample t-test the general situation an important issue in planning a new study is the determination of an appropriate sample size required to meet certain conditions. Excel provides a sampling data analysis tool which can be used to create samples the tool works by defining the population as an array in an excel worksheet and then using the following input parameters to determine how you would like to carry out the sampling.
You decide $150,000 is the maximum tolerable misstatement and anticipate that there may be $30,000 of misstatement in the populationyou wish to limit the risk of incorrect acceptance to 10. Sample therefore, the sampling process should not begin before the complete population is available, if no errors are expected, pps sampling generally requires a smaller sample than other methods analytical procedures might be used to test the reasonableness of dividend. Sample size to achieve a speciﬁed probability of obtaining statistical signiﬁcance second, suppose we have the goal of demonstrating that more than half the pop- ulation supports the death penalty—that is, that p 1/2—based on the estimate. Sampling to test the reasonableness of the recorded book value will be found, you decide to use probability proportional- to will be the sum of projected misstatement of all four samples.
Example if there are 100 hospitals in our population, and we choose 5 of them, the sampling weight is 20 = 100=5 thus a sampled hospital represents 20 hospitals in the population. Pps sampling) you decide to use statistical sampling to test the reasonableness of the recorded book value of the key west company's accounts receivable because the company's internal control procedures over accounts receivable have been evaluated by you as excellent and you believe few misstatements will be found, you decide to use probability-proportional-to-size sampling. ©2010 prentice hall business publishing, auditing 13/e, arens//elder/beasley 15 - 36 statistical audit sampling the statistical sampling method most commonly used for tests of controls and substantive tests of transactions is attributes sampling. Probability sampling unlike nonprobability sampling, probability sampling sampling techniques for which a person’s likelihood of being selected for membership in the sample is known refers to sampling techniques for which a person’s (or event’s) likelihood of being selected for membership in the sample is known you might ask yourself why we should care about a study element’s.