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
Calculate the market value of your corporation at the end of the sample period. Multiply the last price in the sample times the number of shares outstanding at that time. You can
Assume that the per capita income in Alfaland (with initial high per capita income) is growing quicker than it is in Betaland (with initial low per capita income). Then: the gap in
Mercier Corporation's stock is selling for $95. It has just paid a dividend of $5 s share. The expected growth rate in dividends is 8 percent. a. What is the needed rate of retu
A1. Given the following production function Level of fertilizer Level of maize 0 0 1 44.9 2 83.6 3 110.1 4 127.3 5 136.9 6 139.9 7 137.1 8 129.2 a) Calculate the APP, MPP and elas
What are the requirements of national figure to adjusting? National figures first require adjusting: • For population: Dividing Gross Domestic Product (GDP) by total populat
Use short notes and illustrations to answer the following questions: i) Distinguish between an indifference curve and an isoquant ii) Distinguish between substitution and inc
It commonly refers to the combination of commercial banking and investment banking. It is a supermarket for both wholesaler n retailer financial services as it offers a huge range
Is industrialisation significant in the process of development? Industrialisation is considered as a major driver of LDC development. Industrialisation arises while a predomin
QUESTION (a) Using diagrams where appropriate, explain the concepts of scarcity, choice and opportunity cost. (b) Distinguish between positive and negative externalities, il
Can economies grow of less developed countries by developing its secondary sector? Economies grow of less developed countries by developing its secondary sector because manufac
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