Cost- sampling decisons, Operation Research

Assignment Help:

Cost- sampling decisons

 

                      σ x¯ =S/√n

     

Where is the  standard  error of he mean is the standard devaluation of  the population and n is the sample size. Here  the standard  error  of the mean is expressed in terms  of money i, e. ± Rs. 10. If the  standard  deviation is 100  the factor  for 95 percent  confidence is 1.96 of standard deviation. Thus  the actual size  of the  sample  would be

                10/ 1.96 = 100/√n

                 √n = 196/10

                N = 384

The total  cost of  the budget  been reduced from  Rs.8000 to Rs. 7680= ( 384x 20)

Another  alternative may be to  increase  the allowable error  from a lower  level to  higher level  provided  it does  not affect  the attitude  of the  respondents. For  example  if the  error is increased to  15, the sample  size will be

         σ x¯ =s/√n

        1.5/1.96= 100√n

      √n= 196/ 15

     N= 169

Thus  the total  budget  will be reduced from  Rs. 8000 to Rs. 3380= ( 196x 20)

    

 


Related Discussions:- Cost- sampling decisons

Linear progaming, #questA paper mill produces two grades of paper viz., X a...

#questA paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y p

Scope of operations research, Scope of the OR techniques can be derived ...

Scope of the OR techniques can be derived in followings various importance fields: 1. In Agriculture : With the explosion of population and consequent shortage of food O

Linear programming, b. A paper mill produces two grades of paper viz., X an...

b. A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y pape

A paper mill, A paper mill products two grade of paper viz., X & Y. Because...

A paper mill products two grade of paper viz., X & Y. Because of raw material restriction, it cannot produce more than 400 tons of grade X paper & 300 tons of grade Y paper in a we

Experimental design and methodology , Case Study - Experimental Design ...

Case Study - Experimental Design Dental Clinic A leading dental clinic  with  three well qualified  dentists is seriously  considering  keeping  in touch  with  its  pat

Simplex method, Solve the following Linear Programming Problem using Simple...

Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0

Vogel approximation methods, This method is more  systematic and orderly th...

This method is more  systematic and orderly than least cost method. Here penalties for each column and row of the transportation table are determined, and the row  or  column with

Overhead projector -report writing presentation , Overhead Projector  ...

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

Simple graph-correlation and regression analysis, Simple Graph The val...

Simple Graph The values of the two variables are plotted on a graph paper. We get two curves one for x variables and another for y  variables. These  two curves reveal the dir

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd