Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Sampling and tests of significance are very important tools in business economics. In fact one cannot do any meaningful marketing research without the requisite knowledge of sampling techniques.Any collection (usually large) of individuals or objects is called a population or universe.A finite subset of a population is called a sample. The number of individuals in a sample is called the sample size. 1. Random Sampling: When a sample is taken in such a way that each member of the population has the same probability of being selected, the sample so obtained is called a random sample and the technique is called random sampling. 2. Simple Sampling: It is a special case of random in which each event has the same probability of success and the probability of an event is independent of the success or failure of event in the preceding trails. Thus, simple sampling is a random sampling in which the trails are independent and the probability of success is constant. 3. Large and the small sample: Sample of size n > 30 is called large samples and samples of size n ≤ 30 is called small samples. 4. Hypothesis: In order to make certain decisions about a population on the basis of sample information, some assumption is made about the population. Such assumption, which are not necessarily true, are called statistical hypothesis. 5. Null Hypothesis: The hypothesis tested for possible rejection under the assumption that it is true, is called the null hypothesis. 6. Parameters and Statistics: The Statical constants of the population viz., mean (μ), variance (σ2), etc., are usually referred to as parametrs. The statistical measures computed from the sample observations above, e.g., mean X¯, variance (s2), etc., are called statistics. 7. Level of significance : We are not introducing binomial statement and Normal distribution in this introductory book .The following statements may be taken as given: (i) Normal distribution is the limiting case of the binomial distribution. When n -> α (i.e., the number of trials is indefinitely large) and neither P nor q is very small. (ii) The vitiate Z is defined by
What is absolute poverty and relative poverty? Absolute poverty: It is an income level below that essential to meet fundamental requirements. The UN measure of absolute
advantages and disadvantages of commercial banking
Is population growth a problem? Quick population growth is a main cause of poverty and arises where population growth go beyond the rate of economic growth. Standards of liv
What is the failure effectiveness of multi-national companies (transnationals) in the promotion of development? TNC FDI failure into hindering development: • TNCs are accus
QUESTION Case Study E -HR Strategy: An Electronic (E) Human Resource (HR) Strategy is attainable by small and medium sized business 1. Introduction This article is
Explain about the term underemployment and unemployment rate. Discouraged employees are non-working people who are able of working although are not actively in search of a job.
Define economies grow of less developed countries by developing its secondary sector. Less developed countries economies grow by developing its industrialising: Manufacturi
state the demand theory.
Describe the terms inflation, deflation, and inflation rate and price stability. Inflation and Deflation: a. An increasing aggregate price level is called as inflation.
Why do all multinational automakers choose to use FDI to enter this industry? What are the drawbacks of using other entry modes such as exporting and licensing?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd