--%>
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 : Equilibrium price in short run The

    The equilibrium prices for cranberries within the short run of: (w) P1. (x) P2. (y) P3. (z) P4.

    Q : Problem on decline in demand function

    In the month of January, Disney World in Florida cut its ticket prices into half and starts letting all kids beneath age five without charge. The economic forecaster might reasonably expect: (1) A decline in demand for the tickets to Disney Land in California. (2) A r

    		•
  • Q : Problem of Income Effects on paychecks

    I have a problem in economics on Income Effects on paychecks. Please help me in the following question. Whenever prices are increased and your paycheck does not alter the purchasing power of your pay refuses. This is an instance of the: (1) Substituti

    		•
  • Q : Public Goods and Service Why does a

    Why does a good or service become a public good or service?

    		•
  • Q : Income and Inferior Goods problem I

    I have a problem in economics on Income and Inferior Goods problem. Please help me in the following question. For a non-vegetarian, Spam is to filet the mignon as: (1) Luxury goods are to requirements. (2) Complementary goods are to substitute goods.

    		•
  • Q : Total revenue when a price increases

    For hamburgers the demand is relatively elastic. When the price of hamburgers increases, in that case: (i) the quantity demanded will go up. (ii) its demand will increase. (iii) total revenue will increase. (iv) total revenue will reduce.

  • Q : Nondiscriminating monopolists in short

    Within short run equilibrium, there nondiscriminating monopolists will: (w) charge prices greater than their marginal costs. (x) produce outputs which maximize social welfare. (y) produce where their total revenues are maximized. (z)

    		•
  • Q : Help The problem of asymmetric

    The problem of asymmetric information is that: a) neither health care buyers nor providers are well-informed. b) health care providers are well-informed, but buyers are not. c) the outcomes of many complex medical procedures cannot be predicted. d) insurance companies are well-informed

    		•
  • Q : Percent of interest rate for the price

    When the Bank of England issues perpetuities which pay of £100 yearly, forever, beginning one year by today, in that case at an interest rate of 5 percent the price of that bonds is: (1) £9,500. (2) £5,000. (3) £2,000. (4) &pou

    		•
  • Q : Problems on leftward shift of demand

    Whenever kids abandon a short-lived fad for Dinosaur action figures, this would be exhibited by the: (1) Left-ward shift of demand curve. (2) Right-ward shift of supply curve. (3) Right-ward shift of demand curve. (4) Left-ward shift of supply curve. (5) Movement down

    		•