--%>
Assignment Help - homework help

Define Optimal Sample Size

Optimal Sample Size: The optimal or suitable size of sample in a survey or poll is the function of four discrete factors:

1. Size of the population: The size of the source population matters a lot. Usually, as the needed sample gets bigger the source population rises, apart from it will raise at a declining rate. Likewise, as the source population gets smaller, special adjustments have to be made.

2. Segmentations desired: Usually, we analyze the source population as an entire, however sometimes one might want to make sure it is representative of the demographic or other distributions in the source population. The more you wish for to segment the outcomes, the larger the sample might require to be.

3. Degree of variance in responses from the population: If the respondents' responses tend to be tightly clustered, then we do not require to sample as many people to acquire the same confidence as we would when the responses range broadly. However until we do some surveying and analyze the data, we won’t know the variance. In such cases, we should set a conservative assumption about the variance.

4. Tolerance for error: The more confident you want to be about the results, the larger the sample.

   Related Questions in Microeconomics

  • Q : Good theory It is frequently said that

    It is frequently said that a good theory is one which can in principle be refuted by an empirical, data-oriented study. Describe why a theory which cannot be evaluated empirically is not a good theory.In evaluating theory there are two steps: f

    		•
  • Q : Social welfare function What do you

    What do you mean by a social welfare function? If you assume that such a function exists, what properties of social optima would be considered by you? Discuss such properties.

    		•
  • Q : Increment in quantity demanded by price

    A demand curve has a slope which would be expressed as like $5/ (1 extra ton demanded) when a: (w) 5 % price cut raises quantity demanded by 1 %. (x) $5 price cut increases quantity demanded by 2000 lbs. (y) $5 price hike boosts quantity supplied by 2

    		•
  • Q : Percentage change in the real price

    Table describe the average retail price of milk and the Consumer Price Index during 1980 to 1998. Determine percentage change in the real price (1980 dollars) from 1990 to 1995?       

    		•
  • Q : Effect of preference on demand Maureen

    Maureen generally drinks two glasses of Lost Horizons Cabernet Sauvignon each evening. Her demand for her preferred brand is least probable to be influenced by:  (i) The bad crop of grapes lowering the quality of Lost Horizons Cabernet. (ii) Getting a $4000 annua

    		•
  • Q : Demands for productive resources The

    The demands for productive resources are eventually “derived” by the: (w) marginal utility they directly generate. (x) demands for consumer goods and services. (y) disutility incurred in supplying labor. (z) equity of resource owners as ju

    		•
  • Q : Long run problem In long run , the

    In long run, the actions of successful speculators tend to rise: (i) Gains and raise consumer’s costs. (ii) Output and decrease the volatility of prices. (iii) Corruption and Bribery in government. (iv) The volatility of both prices and outputs.

    		•
  • Q : Founder of Utilitarianism I have a

    I have a problem in economics on Founder of Utilitarianism. Please help me in the following question. The utilitarianism founder in England was: (i) Rupert Brooke. (ii) Jeremy Bentham. (iii) Thomas Dewey. (iv) John Stuart Mill. (v) Adam Smith.

    Q : Point of hiring labor for profit

    The entire profit maximizing firm will hire additional labor up to the point where the: (i) Average physical product of the labor equivalents the nominal wage. (ii) Last unit of labor adds equally to net revenue and net cost. (iii) Marginal product of the labor is at

    		•
  • Q : Positive economic analysis and normative

    Which of the given two statements involves positive economic analysis and which normative? How do the two type of analysis differ?a. Gasoline rationing (allocating to each year to each individual an annual maximum amount of gasoline whi

    		•