Z-test - hypothesis testing, Operation Research

Assignment Help:

Z-Test

Prof. Fisher has  given a method  of testing the significance of the correlation coefficient in small  samples. According  to this method the  coefficient of correlation is transformed into Z  and hence the  name  transformation. The statistic Z given by  prof. Fisher is used  to test:

a.Whether  an observed value  of r differs significantly from some  hypothetical value or.

b.Whether two samples values of  r differ significantly,

For  testing whether r differs significantly from zero the t- test is preferable.

In order to apply the test  we have to calculate Z and by applying Fisher transformation and then  calculate the  value  of the standard  normal  variate.

                 Z- ε / 1/√n-3


Related Discussions:- Z-test - hypothesis testing

ANSWER OF PROBLEM RELATING TO PERT AND CPM., ANSWER OF ACTIVITY WITH THEIR ...

ANSWER OF ACTIVITY WITH THEIR PRECEDING ACTIVITY AND DURATION OF TIME IN WEEKS?

International trade, why does south africa regulate int''l trade

why does south africa regulate int''l trade

Linear programming problem, #Solve the following Linear Programming Problem...

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

Scope, Scope of operations research

Scope of operations research

Rehearse - report writing presentation , Rehearse Making  presentat...

Rehearse Making  presentation is not  simple. It  is extremely  important  for us  to realize the sanctity of rehearsing  to improve the quality of the presentation. Unless

Action Phase, What is The proper meaning of action phase will u help me to ...

What is The proper meaning of action phase will u help me to lern it in deeply????

MBA, #q.2 Q.2 Six Operators are to be assigned to five jobs with the cost o...

#q.2 Q.2 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 a

Classification of documents - books, Books: Books form  one of the pri...

Books: Books form  one of the primary sources of information. They provide a cohesively organised (thought content) information on a specific subject of optimum depth. Since b

A paper mill produces two grades of paper viz., A paper mill produces two g...

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 paper i

Game theory , 3 In a rectangular game, pay-off matrix of player A is as f...

3 In a rectangular game, pay-off matrix of player A is as follows:

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