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
A. CALCUATE THE OPTIOMAL MONEY GROWTH RATE NEEDED FOR THE FED TO HIT ITS INFLATION TARGET RUN
QUESTION (a) Explain the Law of demand and the factors affecting demand for a product or service. (b) Explain and illustrate diagrammatically how the market demand for a pro
Create the scatter graph of the monthly return on your corporation (on the vertical axis) versus the monthly return on the S&P 500 (on the horizontal axis)--so there should be 60 d
Problem 1: (a) Distinguish between the two broad aspects of globalization. (b) Critically analyse the drivers of globalisation. (c) Discuss, with examples, on the advanta
Explain about the term end stage assessment in project management methods. End stage assessment: At the end of every stage of a project, the project manager is needed to
Question 1: a) Explain, with the use of examples, what is meant by the ‘Factor Endowment Theory'. b) According to you, can the ‘Factor Endowment Theory' be a reasonable e
1. Consider the market where there is product differentiation with two firms. The firms are choosing prices p1 and p2 and have demands given by q1 = 40 - 0.5 p1 + p2 q2 = 60
How did ikea''s strategy prior to north American entry and their strategy today?
Does economic growth automatically reduce poverty? Growth implies more goods and services are obtainable to satisfy more wants and requirements. But the benefits of growth may
QUESTION On a dark day, a train carrying more than 25 propane tankers derailed and began to burn. Upon arrival at the scene and conducting an initial size-up, the incident comm
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