Essay about Sampling
Carrying out a survey of every single potential consumer (known as population) of a firm's product would be impractical, timeconsuming and costly. Businesses still, however, need to collect enough primary data to have a clear idea of the views of consumers. This can be done by taking a sample of the population. This sample group should be made up of consumers that are representative of all potential buyers of the product. There are a number of ways in which a sample can be chosen.
Random Sampling
This method gives each member of a group an equal chance of being chosen. In other words, the sample is selected at random, rather like picking numbers out of a hat. Today computers can …show more content…
Quota Sampling
This sampling method involves the population being segmented into a number of groups which share specific characteristics. These may be based on the age and the sex of the population. Interviewers are then given targets for the number of people out of each segment who they must interview. For example, and interviewer may be asked to interview 10 males between the ages of 18 and 25, or 15 females between the ages of 45 and 60. Once the target is reached, no more people from that group are interviewed. The advantage of this sampling method is that it can be cheaper to operate than many of the others. It is also useful where the proportions of the different groups within the population are known. However, results from quota sampling are not statistically representative of the population and are not randomly chosen. They must therefore be treated with caution.
Cluster Sampling
This involves

Questions On Non Probability Sampling
1039 Words  5 Pagesnonprobability sampling is and the different types such as snowball sampling, quota sampling, convenience sampling and purposive sampling. In addition, the pros and cons of nonprobability will be discussed such as the correct sample size, determining the desired precision, and managing the variation in the population to name a few examples. Furthermore, this journal will discuss why a researcher might want to use nonprobability sampling over other methods such as cluster sampling or systematic random…

Sampling Design
3357 Words  14 Pagesfrom a population is known as sample design. It describes various sampling techniques and sample size. It refers to the technique or procedure the researcher would adopt in selecting items for the sample. STEPS IN SAMPLE DESIGN Type of universe Sampling unit Source List Size of Sample Parameters of Interest Budgetary Constraint Sampling Procedure CRITERIA OF SELECTING A SAMPLING PROCEDURE Inappropriate sampling frame Defective measuring device NonRespondents Indeterminancy…

Random Sampling
11805 Words  48 Pages2008. NOT FOR COMMERCIAL DISTRIBUTION 3 Simple Random Sampling 3.1 INTRODUCTION Everyone mentions simple random sampling, but few use this method for populationbased surveys. Rapid surveys are no exception, since they too use a more complex sampling scheme. So why should we be concerned with simple random sampling? The main reason is to learn the theory of sampling. Simple random sampling is the basic selection process of sampling and is easiest to understand. If everyone in a population could…

Correlation Between Sampling, Sampling Risk And Nonsampling Risk
1446 Words  6 PagesSampling means take one typical part of from the whole population, which is an essential method for corporations to get the result of their new products or policies. When corporations test the sample, they do not actually need the specific data and number. In addition, the total number of comprising the population is usually large, so the corporations usually do not test the whole population for reducing meaningless time and labor cost. Sampling is a good way to trade effectiveness to efficiency…

Audit Sampling
1960 Words  8 PagesReceivable balances for Key West Company as of 20X1. Our team has already completed a thorough evaluation of the company’s internal control and we believe they are excellent. Therefore, the team has decided to use the Probabilityproportionatetosize sampling theory, (PPS). We have used PPS to find the evidence required to prove there has been no materially misstatement in Key West Company’s accounts receivable accounts. The financial cycle is the cycles of business transactions, which involve the processing…

Sampling Techniques
5476 Words  22 PagesSampling Techniques Worksheet For each description of sampling, decide if the sampling technique is A. Simple Random B. Stratified C. Cluster D. Systematic E. Convenience 1. In order to estimate the percentage of defects in a recent manufacturing batch, a quality control manager at Intel selected every 8th chip that comes off the assembly line starting with the 3rd, until she obtains a sample of 140 chips. 2. In order to determine the average IQ of ninthgrade students, a school psychologist…

Auditors and Sampling Techniques
2845 Words  11 Pages1) Describe the conditions under which an auditor might choose to select a sampling technique, either statistical or nonstatistical, over a nonsampling technique and vice versa. Include examples from both tests of controls and tests of balances. a) Testing of Controls: i) When sampling is appropriate and why? Although there is an option not to generate a sample to test if the control is working effectively or not, it is rarely the case. For most controls being tested, it would be too costly…

Sampling Techniques
7669 Words  31 PagesCHAPTER 7—SAMPLING AND SAMPLING DISTRIBUTIONS MULTIPLE CHOICE 1. From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many different random samples of 4 students can be selected? a.48 b.20,736 c.16 d.495 ANS: D 2. Parameters are a.numerical characteristics of a sample b.numerical characteristics of a population c.the averages taken from a sample d.numerical characteristics of either a sample or a population ANS:…

Sampling And Non Random Sampling
1344 Words  6 PagesSampling As the population of this study was the Indian SMEs in Europe which were thousands in numbers; it was notpractical to reach all of them within the timeframe available to complete this dissertation. This made it inevitable to undertake sampling. Sampling is undertaken in order to select units or members that are representative of the population. There are mainly two kinds of sampling namely probability and nonprobability sampling (Sekaran and Bougie, 2009). A probability sample is a sample…

Sampling Vs. Stratified Random Sampling
1275 Words  6 PagesSimple Random Sampling vs. Stratified Random Sampling Sampling involves selecting a subset of elements from the population. In this case, Stratified Random Sampling, and Simple Random Sampling plans are compared as data collection methods for a sample that a researcher would consider using for a business survey for a marketing/advertising campaign. Simple Random Sampling is a sampling procedure whereby the researcher defines the target population and then selects a sampling frame from the population…
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