Definition: The Public Relations or PR is the practice of maintaining relations between the organization and its public. The purpose of PR is to convince the stakeholders and other investors to maintain a favorable point of view of the organization concerned. Public Relations Activities The organizations use several public relations activities and tools to promote a positive … [Read more...] about Public Relations Activities

## Models of Public Relations

Definition: The Public Relations or PR helps in shaping the image of the organization with its prospective customers in such a way that a favorable response is created. Models of Public Relations When we talk about the models of public relations, the only names that come to the mind is of Grunig and Hunt, who have identified four models of public relations, all of which to … [Read more...] about Models of Public Relations

## Public Relations

Definition: The Public Relations or PR is a practice of maintaining and shaping the image of an individual or an organization to the public in such a way that a favorable point of view is developed for the concerned entity. In other words, an activity designed to help an organization and its public, such as customers, employees, government, suppliers, etc. who are directly … [Read more...] about Public Relations

## Sampling Distribution of Standard Deviation

Definition: The Sampling Distribution of Standard Deviation estimates the standard deviation of the samples that approximates closely to the population standard deviation, in case the population standard deviation is not easily known. Thus, the sample standard deviation (S) can be used in the place of population standard deviation (σ). Symbolically, S= standard error of the … [Read more...] about Sampling Distribution of Standard Deviation

## Sampling Distribution of Proportion

Definition: The Sampling Distribution of Proportion measures the proportion of success, i.e. a chance of occurrence of certain events, by dividing the number of successes i.e. chances by the sample size ’n’. Thus, the sample proportion is defined as p = x/n. The sampling distribution of proportion obeys the binomial probability law if the random sample of ‘n’ is obtained … [Read more...] about Sampling Distribution of Proportion

## Sampling Distribution of the Difference Between Two Means

Definition: The Sampling Distribution of the Difference between Two Means shows the distribution of means of two samples drawn from the two independent populations, such that the difference between the population means can possibly be evaluated by the difference between the sample means. Let say, there are two populations, first of size N1, with mean ?1, and standard … [Read more...] about Sampling Distribution of the Difference Between Two Means

## Sampling Distribution of Median

Definition: The Sampling Distribution of Median shows the distribution of sample medians, a mid-value in the items arranged in some chronological order in the sample drawn from the population. If the population is large approximated by the normal distribution with mean? And a standard deviation σ, the medians of random samples of size n are distributed with mean? And a … [Read more...] about Sampling Distribution of Median

## Sampling Distribution of Mean

Definition: The Sampling Distribution of the Mean is the mean of the population from where the items are sampled. If the population distribution is normal, then the sampling distribution of the mean is likely to be normal for the samples of all sizes. Following are the main properties of the sampling distribution of the mean: Its mean is equal to the population mean, … [Read more...] about Sampling Distribution of Mean

## Sampling Distribution

Definition: The Sampling Distribution helps in determining the degree to which the sample means from different samples differ from each other, and the population mean to determine the degree of closeness between the particular sample mean to the population mean. In other words, the sampling distribution constitutes the theoretical basis of inferential statistics that … [Read more...] about Sampling Distribution

## Sample Distribution

Definition: The Sample is the representative of the population from where it is drawn, and thus the Sample Distribution measures the frequency with which the number of subjects that make up the sample is actually drawn for a given research study. The samples are drawn when the population size is large, and it is not possible for an investigator to completely enumerate all … [Read more...] about Sample Distribution