CHAPTER 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:
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Random sampling is the purest form of probability sampling. Each member of the population has an equal and known chance of being selected. When there are very large populations‚ it is often difficult or impossible to identify every member of the population‚ so the pool of available subjects becomes biased. Systematic sampling is often used instead of random sampling. It is also called an Nth name selection technique. After the required sample size has been calculated‚ every Nth record is selected
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Sampling methodologies Sampling It may be defined as a process of selecting units that may be people‚ organizations etc‚ from a larger whole i.e. from a population of interest‚ so that by studying the sample we may come up with general characteristics of the entire population under consideration. Types of sampling methods: Probability sampling Probability sampling is a type of sampling that includes random selection. And in order to achieve random selection‚ it must be
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SAMPLING Sampling is the act‚ process‚ or technique of selecting a suitable sample‚ or a representative part of a population for the purpose of determining parameters or characteristics of the whole population. REASONS FOR SAMPLING There are six main reasons for sampling instead of doing a census. These are; * Economy * Timeliness * The large size of many populations * Inaccessibility of some of the population * Destructiveness of the observation * Accuracy or Reliability
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TABLE OF CONTENT 1. WHY CHOOSING CROWN FURNITURE? -------------------------------------------------- 2 2. COMPANY HISTORY ---------------------------------------------------------------------------- 2 3. MAIN OBJECTIVES & GROWING PLANS -------------------------------------------------- 2 4. KEY STRATEGIC ASSET TO CROWN FURNITURE SUCCESS ----------------------- 3 5. CROWN FURNITURE’S PRODUCTS HAVE COVERED --------------------------------- 3 6. HQ MANAGER’S & OUTLET
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Sampling distribution The sampling distribution is the distribution of the values of a sample statistic computed for each possible sample that could be drawn from the target population under a specified sampling plan. Because many different samples could be drawn from a population of elements‚ the sample statistics derived from any one sample will likely not equal the population parameters. As a result‚ the sampling distribution supplies an approximation of the true value’s population parameters
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Title Dahlia Furniture Private Limited Time context 1972 Summary On August 1984‚ Mr. Chua Boon Kang and Mr. Leong Sim Lam bought over Peter Lim’s forty six percent (46%) stake at Dahlia Furniture Private Limited. Although co-owners at one time‚ Mr. Chua and Mr. Leong have found Mr. Lim’s management of the company to be unsatisfactory. Some reorganization took place as most of the production workers who were doing subcontracting orders solely for Dahlia had resigned due to poor company performance
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Aim * To educate students on what instruments they should use for sampling of water sample. * To expose the students the proper technique to measure the water. * To give the students experience with sampling of water sample. Introduction Pollution can be defined as a harm to the environment which can cause a lot of bad consequences to human health‚ living resources and ecological. Thus‚ pollutants can be gain from many sources and can take many forms. The pollutants can contaminate
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2. SEED SAMPLING RL. AGRA w.4.L Seed sampling is aimed at obtaining a sample of the required size and consisting of the same components as the whole lot of seeds. The quantity of seed tested in the laboratory is small‚ compared with the size of the seed lot which it is intended to represent. No matter how accurately the laboratory work is done‚ the results can only show the quality of the sample submitted for analysis. Consequently. every effort must be made to ensure that the sample sent to
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describe furniture buying using the purchase decision process described in Chapter 5? Problem Recognition: At the initial stage of the buying process‚ there are several key findings to consider. First‚ it comes as no surprise that the furniture purchase process begins when a consumer identifies a need or desire for an item. Most furniture purchases are planned– not surprising when considering the few instances of a furniture impulse buying. The largest percentage of consumers purchased furniture ‘to
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