## Determining sample size for estimating poportions, Operation Research

Assignment Help:

Determining Sample Size for Estimating poportions

It is  necessary  to determining  the sample size for a  problem involving  proportions. This deals  with the percentage of frequency  of occurrence. The standard  deviation is  computed considering  the  proportions of  the happening  of the  particular  event. If the  frequency of occurrence is  known  as p and the frequency  of non occurrence is known  as 1 , the  standard deviation  of the  proportion maybe

p = √p q/n

The samples  size is determine  as discussed  earlier. The precision and population size have been  the deciding  factors for  determining  the sample size. The precision can again  be expressed absolutely or  relatively. Absolute  precision involves  that the  estimate will be within  plus  or minus  of the true value i ,e,± 5 percentage  points  of the true  value. If  the sample  elements  are selected independently  and if  the sample  size is small the correct  distribution  of the sample proportion will  be binomial. It is  convenient  to employ the normal  approximation for  estimating the  sample size. After the sample  is  drawn and the  sample  promotion  determined  the researcher  determines  the confidence  interval.

#### Research, Discus and explain both probability and none probability sampling...

Discus and explain both probability and none probability sampling techniques

#### Theoretical framework, Ask questiAvatars are virtual characters that can be...

Ask questiAvatars are virtual characters that can be used as representatives of a company that is using the Internet as a distribution channel. For instance, avatars can be used as

#### Deviation taken from assumed mean, Deviation Taken from Assumed Mean ...

Deviation Taken from Assumed Mean This methods  is assorted  when the  arithmetic  average  is a  fractional value. Taking  deviation from  fractional value would  be a ver

#### Inventory models - techniques of operations research, Inventory models deal...

Inventory models deal with the problem of determination of how much to order at a point in time and when to place an order. The main objective is to minimize the sum of three

#### Research paper, Research Paper Overview Research Topic: •    Research ...

Research Paper Overview Research Topic: •    Research the effects of federal mandates in your state.  Examples include the Americans with Disabilities Act, the No Child Left B

#### Reports - classification of documents, Reports: Report literature is a...

Reports: Report literature is an important primary source of information, particularly  for a research library. This new  medium for communication of information came into bei

#### Assignment, Q2. Six Operators are to be assigned to five jobs with the cost...

Q2. Six Operators are to be assigned to five jobs with the cost of assignment in Rs. given in the matrix below. Determine the optimal assignment. Which operator will have no assign

#### Determination of effectiveness measures, Determination of effectiveness Mea...

Determination of effectiveness Measures: Effectiveness measure is a measure of success of a model in representing a problem and providing a solution. It is the connecting link

Overhead Projector  Overhead  projector  casts an images of the transparencies  on a  screen. Transparencies  are frequently  used  visual  aids  especially  when  audience

#### Presentation - report writing presentation , Presentation After  the c...

Presentation After  the completion of any  research  project the concept  techniques  and results  of the  research  projects  should  be presented to the  audience of interes  