Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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
Usefulness of Correlation 1.Correlation is very useful to economists to study the relationship between variables like price and quantity demanded. To businessmen it
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
Rephrasing the Research Problem Finally as a researcher you should rephrase the research problem. Once you have followed all the four steps above, i.e., 1) You have clear
fair game
One Sample Tests The one sample test is applied to a situation where only a single sample ( one sample) is taken from a population in this test the researcher may be tak
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 in
1. A local university purchases exercise books to give to their students. Instead of a fixed unit cost, their supplier quotes the following discount pricing: Order quantity Unit P
Explain Decision Making Process. Decision Making Process: A good decision can only be prepared as a result of a rational decision making process. The different stages of the
Preparation of Script The most tedious and arduous takes is the preparation of the script. While you have all the ideas and points will should stored up in the mi
REPORT WRITING The final step in research is to report the study findings to those who authorized the investigation. The American marketing association is of the opinion t
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd