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!
Form of t- Distribution
1. The students t - distribution like the normal distribution has bell shaped frequency curve which is symmetrical. The only parameter which determine the shapes of the curve is the degree of freedom. With a change in the degrees of freedom the shape of the curve will also change.
2.The mean of the t- distribution is zero. This is so case of normal curve also.
3.The variance of t- distribution is greater than one and as the sample size increase it tends to move towards unity. It is for the reason that it has been mentioned above that the single parameter which change the form of distribution are the degrees of freedom or the size of the sample. If samples size becomes very large there is no difference between distribution and normal distribution .
4.T distribution can be used even in case of large samples but the large sample theory cannot be use for small samples.
5. The value of t ranges from minus infinity to plus infinity.
The followings diagram gives the steps of distribution and a normal distribution. It would be noted that as the degrees of freedom changes the shapes of the t- distribution also changes.
the above diagram shows two important characteristics of t- distributions. First a t- distribution is lower at the mean and higher at the tails than a normal distribution. Second the distribution has proportionately greater area in its tails than the normal distribution. Interval widths from t- distribution are therefore wider than those based on the normal distribution.
Project Management Your data need to be organized in such a way that access to them is both quick and accurate. In achieving this a good qualitative analysis progra
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
A company manufactures 2 kinds of hats. Each hat of the I type needs twice as much as labour time as the II type. The company can manufacture a sum of 500 hats a day. The market re
1: explain vogel''s approximation method? 2: explain optimality test?
#question:explain the theory of dominance in the solution of rectangular games?
You are required to analyse the case study, as indicated under these headings: 1. Identify FIVE persons, bodies, organisations or groups in the case study. 2. For EACH of the
In this project the main focus is conducted interview to educational experts. This interview is base on Delphi technique. This technique is used to attain experts' consensus on ele
What is the role of decision making in OR
Define the role of the RBI in informing FEMA?
Other Determinants of Sample Size 1. The variability of elements within the population has become a very important factor to decide the sample size. The more v
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