Determine rank correlation coefficient, Mathematics

Assignment Help:

Determine Rank Correlation Coefficient

A group of 8 accountancy students are tested in Quantitative Techniques and Law II. Their rankings in the two tests were as:

Student	Q. T. ranking	Law II ranking	d	d²
A	2	3	-1	1
B	7	6	1	1
C	6	4	2	4
D	1	2	-1	1
E	4	5	-1	1
F	3	1	2	4
G	5	8	-3	9
H	8	7	1	1

Σd² = 22

d = Q. T. ranking - Law II ranking

R = 1 - {(6Σd²)/(n(n² -1))}

1 -{(6(22))/(8(8² -1))} = 0.74

Hence we conclude that there is a reasonable agreement among student's performances in the two types of tests.

NOTE: in this illustration, if we are given the actual marks then we find r. R varies between -1 and +1.

Related Discussions:- Determine rank correlation coefficient

Assemble the coefficient matrix and solve the linear system, Solve discrete...

Solve discrete harmonic mapping of a given surface patch (suppose the surface is genus-0 and with one boundary) 1. Map the boundary loop onto a unit rectangle using chord-length

Solution process of linear differential equations, For a first order linear...

For a first order linear differential equation the solution process is as given below: 1. Place the differential equation in the correct initial form, (1). 2. Determine the i

Geometry, all basic knowledge related to geometry

all basic knowledge related to geometry

Integrate even or odd function, Integrate following. ∫ -2 2 4x 4 - ...

Integrate following. ∫ -2 2 4x 4 - x 2 + 1dx Solution In this case the integrand is even & the interval is accurate so, ∫ -2 2 4x 4 - x 2 + 1dx = 2∫ o

100 day countdown, subtract 20and 10,and then mutiply by 5

subtract 20and 10,and then mutiply by 5

Calculate the ratio of the areas of three sectors, A circular disc of 6 cm ...

A circular disc of 6 cm radius is divided into three sectors with central angles 1200, 1500,900. What part of the circle is the sector with central angles 1200. Also give the ratio

one student is more in each row, The students of a class are made to stand...

The students of a class are made to stand in complete rows. If one student is more in each row, there would be 2 rows less, and if one student is less in every row, there would be

Assignment help, How do get help with my work? should i just type it in thi...

How do get help with my work? should i just type it in this box...? sorry thanks!

The Theory of Set, Set M= {m''s/m is a number from 5 to 10}

Set M= {m''s/m is a number from 5 to 10}

Arden''s Theorem, Find the Regular Grammar for the following Regular Expres...

Find the Regular Grammar for the following Regular Expression: a(a+b)*(ab*+ba*)b.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages