Examples of quota sampling in the following topics:
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The Year the Polls Elected Dewey
- In the 1948 presidential election, the use of quota sampling led the polls to inaccurately predict that Dewey would defeat Truman.
- The Crossley, Gallup, and Roper organizations all used quota sampling.
- The intent of quota sampling is to ensure that the sample represents the population in all essential respects.
- In addition, quota sampling involves a human element.
- Quota sampling had to go.
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Sampling Techniques
- As long as the starting point is randomized, systematic sampling is a type of probability sampling.
- Cluster sampling generally increases the variability of sample estimates above that of simple random sampling, depending on how the clusters differ between themselves, as compared with the within-cluster variation.
- In quota sampling, the population is first segmented into mutually exclusive subgroups, just as in stratified sampling.
- In quota sampling the selection of the sample is non-random.
- Accidental sampling (or grab, convenience, or opportunity sampling) is a type of non-probability sampling which involves the sample being drawn from that part of the population which is close to hand.
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Samples
- This process of collecting information from a sample is referred to as sampling.
- The best way to avoid a biased or unrepresentative sample is to select a random sample, also known as a probability sample.
- Several types of random samples are simple random samples, systematic samples, stratified random samples, and cluster random samples.
- A sample that is not random is called a non-random sample, or a non-probability sampling.
- Some examples of nonrandom samples are convenience samples, judgment samples, and quota samples.
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Using Chance in Survey Work
- In order to conduct a survey, a sample from the population must be chosen.
- Probability sampling includes: Simple Random Sampling, Systematic Sampling, Stratified Sampling, Probability Proportional to Size Sampling, and Cluster or Multistage Sampling.
- Hence, because the selection of elements is nonrandom, non-probability sampling does not allow the estimation of sampling errors.
- Information about the relationship between sample and population is limited, making it difficult to extrapolate from the sample to the population.
- Non-probability sampling methods include accidental sampling, quota sampling, and purposive sampling.
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Quotas
- There are two main types of import quota: the absolute quota and the tariff-rate quota.
- A tariff-rate quota is a two-tier quota system that combines characteristics of tariffs and quotas.
- Often, quotas are instituted to:
- Quotas may also encourage smuggling.
- As quotas raise the price of domestic goods, it becomes profitable to try and circumvent the quota by bringing in goods illegally, or in excess of the quota.
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Promoting Free Trade
- Government can promote free trade by reducing tariffs, quotas, and non-tariff barriers.
- Free trade is a policy by which a government does not discriminate against imports or interfere with exports by applying tariffs (to imports), subsidies (to exports), or quotas.
- Tariffs and quotas are explicit government policies that are designed to protect domestic producers, even if they are not the most efficient producers .
- In addition to tariffs and quotas, there are a number of other barriers to free trade that countries use.
- NTBs act just like tariffs and quotas in that they are barriers to free trade.
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Quotas
- To prevent over-fishing, a negative externality, governments may impose individual fishing quotas (IFQs), which set an allowable catch limit for fisheries.
- To address the problem of negative externalities, governments may use a quota system to try and limit them.
- In a quota system, the negative externality is capped at a certain amount.
- In the example of pollution, the government may put a quota on the amount of pollution a factory can produce by issuing tradable permits.
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What Is a Sampling Distribution?
- The sampling distribution of a statistic is the distribution of the statistic for all possible samples from the same population of a given size.
- Similarly, if you took a second sample of 10 women from the same population, you would not expect the mean of this second sample to equal the mean of the first sample.
- Sampling distributions allow analytical considerations to be based on the sampling distribution of a statistic rather than on the joint probability distribution of all the individual sample values.
- The sampling distribution depends on: the underlying distribution of the population, the statistic being considered, the sampling procedure employed, and the sample size used.
- An alternative to the sample mean is the sample median.
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Sampling
- Sampling involves providing a sample of a consumer product to consumers so that they may try said product before committing to a purchase.
- During the product promotion process, sampling involves providing a sample of a consumer product to consumers so that they may try said product before committing to a purchase.
- According to the Product Sampling Study by Arbitron, sampling successfully reaches 70 million consumers every quarter, and one-third of customers who try a sample will buy the sampled product in the same shopping trip, and 58 percent of those surveyed reported that they would buy the product again.
- Marketers who are considering sampling their next product introduction should define the objectives of the sampling program.
- There are a number of popular sampling techniques:
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Creating Sales Force Structure, Territories, and Goals
- Sales goals are commonly stated in terms of quotas.
- A sales quota is the minimum sales goal for a set time span.
- Sales quotas may also be for sales activity, such as number of calls per day.
- Management usually sets the sales quota and the sales territory, but it's not easy.
- When setting quotas, successful sales managers tend to: