Random Sample College Essays Samples For Students

AQA Business Studies Unit 1

Question 1

(a). What is meant by the term random sample?

A sample is an item chosen from the total population, which is being studied. Therefore, a random sample is the number chosen, and it involves components that are unpredictable. This is selection of a few items to represent the entire population. The sample chosen does not represent the population from which it was drawn. This was an estimate done through survey and information from franchisors, which Tom estimated that it would be about 77000 customers in the first year according to his analysis (Dayananda, et. al. 56).

Random sample can be ...

Sampling Techniques

Environmental pollution is a well recognized risk factor for numerous respiratory diseases like asthma and chronic obstructive pulmonary disease (COPD) (Chauhan & Johnstone, 2003). Clinical and epidemiological studies on the link between environmental pollution and respiratory diseases are plagued by diverse and complex methodological issues (Barquera, Rico-Méndez, & Tovar, 2002). This paper will discuss the sample and sampling techniques appropriate for studying the association between respiratory diseases and environmental pollution.
A random sample would be useful in examining the issue of the association between respiratory diseases and environmental pollution. However, due to difficulties in obtaining a random sample from the population ...

Introduction

This research is about an experiment we did in the writing composition class, this semester at the University of Texas, San Antonio. We worked as a group of four on the experiment. For our first task we were given a container of black and white beans mixed and our task was to find out the number of black and white beans, the percentage of each kind of beans, and make a graph accordingly to represent our findings. The second task was to take a random sample of both kinds of beans and compare the results to our finding of the first task. The ...

Statistics in Medicine is one of the tools for analyzing experimental data and clinical observations, as well as the language with which to communicate the mathematical results. However, this is not the only task of statistics in medicine. Mathematical apparatus is widely used for diagnostic purposes, solving classification problems and finding new patterns for the formulation of new scientific hypotheses. Using statistical programs requires knowledge of basic methods and statistical analysis phases: their sequence, necessity and sufficiency. The proposed statement of the main emphasis is not on a detailed understanding of the formulas that make up the statistical methods, and ...

- Convenience sampling: it’s a non-probability technique where the subjects are chosen because of their proximity or convenient accessibility to the researcher. A good example when the researcher is short for time or resources. He would conveniently choose subjects easily accessible to save on transport cost (Levy & Stanley 25).
- Cluster sampling: it is a technique where the whole population is divided into clusters and a random sample from these clusters is selected. This technique would be appropriate when the random sample is scattered so widely that surveying the subjects would be very expensive (Levy & Stanley 21).
- Systematic ...

1. Is the availability of sex chat group and other sexual material on the internet psychologically healthy or damaging?
Comer (2011) portrays the internet as awash in sexual material that is virtually unavoidable. This material once exposed to the children is harmful. Pornographic material on the internet is the major cause of social problems such as rape and child abuse. According to Comer (2011), sex crimes correlates with the exposure or pornographic material on the internet. Sex offenders such as the pedophiles consume much sexual material. The people that are predisposed to exploit others sexually seek pornographic pleasure. ...

Sara chose Case B – Grover’s Corner Department of Transportation, which tasked Larry, a research and program evaluation specialist, to come up with an assessment of customer satisfaction regarding the improvement the department did in terms of individual stations.
Contrary to Sara’s answer (Simple Random Sample Design), I think that Larry used a non-probability sampling method with his use of a convenience sample and not a simple random sample design that utilizes a probability sample. This is because he made use of a readily available list of monthly pass users. In addition, by not going for the whole population of commuters, he left ...

Discussion questions

Metric system has only seven basic units, while the US system has more than 300 basic units; thus, it is simpler. In addition, units in metric systems are multiples of 10, therefore, calculations is easier than in US system. Metric systems are universally applied, except in USA.
Perimeter is measured by distance round a figure whose SI units are meters; therefore, the perimeter is given in units of length. However, area is a derived quantity and its magnitude is obtained by multiplication of two units of length. Therefore, its units are given by the product of the units.
Theoretical ...

1(a) What is meant by the term random sample (line 34)?

The term random sample means a part of a population chosen for investigation without following any specific scientific pattern. The elements of the sample are chosen without following a definite pattern.

1(b) State the formula for calculating ‘market share’ percentage (line 50)?

Market share percentage=

1 (c) Tom believes that the level of spending per visit by his customers will stay the same in 2011 and 2012. Based on the information in the case study, how many customers is he anticipating in 2012?

Number of customers expected=8350 customers.

1( ...