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
Demand
What is meant by the term the triple constraint? What are the three elements of the triple constraint and why is an understanding of their relative weight significant in exercising
β1=0 e5.1 from stock and watson 3rd edition introduction to econometrics Using the data set CPS08 described run a regression of average hourly earnings (AHE) on Age and carry out
What are capacity building policies? Capacity building policies: Capacity building is the development and improvement of institutions. And Capacity building policies as
Scheduling a project includes understanding the degree to a project tasks can be separation. Define the meaning of this term and what effect does partitioning have onto the schedul
how managerial economics is applied in a firm?
How can trade agreements assist development? A trade agreement is while two or more countries to by decrease or abolish tariffs, non-trade and quotas barriers which are establ
Assume the firms cost function is: C(Q)= 100+10Q+Q^2 , Determine whether this industry is a natural monopoly when the demand function is: 1) D(P)= 100-3P 2) D(P)= 90-3P 3) D(P)= 10
A. Consider the example of renovating a highway that is in poor shape, with large holes and crumbling shoulders that slow down traffic and pose an accident risk. The costs include
what are the types of technical economies?
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