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!
ONE SAMPLE RUNS TEST
A number of methods have been developed fro judging the randomness of samples on the basis of the order in which teh observations are taken. It is possible to determine whether the samples that look suspiciously non random may be attributed to chance. The technique discussed below is based on the theory of runs. A run is a succession of identical letters ( or other kinds of symbols) which is followed or preceded by different letter or no letters at all. To illustrate consider the following arrangement of letters.
AAA BBBB CCCC DDDDDD KKK NNN
Using underlines to combine the letters which constitute the runs we find that first share is a run of three a then a run of four
B then a run four C then a run of six D then a run of two K s and lastly a run of three N s. In all there are six runs of varying lengths.
It may be pointed to that the total number of runs appearing in an agreement is often a good indication of a possible lack of randomness. If there are too few runs a definite grouping clustering or trend may be suspected. On the other hand if there are too many runs some sort of repeated alternating pattern may be suspected. Thus it may be possible to prove that too many or too few runs in a sample indicate something other than chance when the items were selected.
The number of runs of r is a statistic with its own special sampling distribution and its own test. To derive the mean of the sampling distribution of r statistic the following formula is used.
explain the significant and scope of operation research in scientific management
Graphs of Time Series A time series is a sequence of values corresponding to successive points of time. Time series are graphed with time on the x axis and the oth
simple Size When a survey is undertaken and it is not possible to cover the entire population, the marketing researcher has to answer a basic question - how large s
we have three reservoirs with daily supplies of15, 20 and 25 litres of fresh water respectively. on each day we must supply four cities A B C D whose demands are 8 10 12 and 15 res
how to solve simplex method in LPP?
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
Characteristics a. Discrete Distribution: Like binomial distribution it is also a discrete probability i e, occurrences can be described by a random variable. b.
procedure of mip
Sample Size in Non Propbability The probability selection does not apply to purposive selection. The size of the non probability samples is selected in a subjective ma
Question A The basic characteristic feature of Operations Research is that it employs mathematical representations or models to analyse problems. Explain the methodology of Operat
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