# Andhra University 2007 B.B.A QUANTITATIVE TECHNIQUES FOR MANAGERIAL ISIONS - Question Paper

Tuesday, 30 April 2013 11:50Web

ANDHRA UNIVERSITY

SCHOOL OF DISTANCE EDUCATION

MASTER OF BUSINESS ADMINISTRATION

I YEAR ASSIGNMENT ques. PAPER 2007 – 2008

(Applicable to Admitted Batches from 1998 to 2006)

QUANTITATIVE TECHNIQUES FOR MANAGERIAL DECISIONS

Assignment No. 1

ans All ques. : five x five = 25 Marks

**1.**

**(**The sum of the pay of 2 lecturers is Rs. 1600 per month. If the pay of

**a)**the 1st lecturer be reduced by 9% and the pay of the 2nd be

increased by 17%, their pays will be equal. obtain the pay of every

lecturer.

**(**Solve the subsequent system of equations using matrix inverse method.

**b)**2 x + 3y – z = one ; x + 2y +3z = four ; 3x – y – 2z = 5

**2.**

**(**discuss the concept of a limit of a function

**a)****(**if the marginal revenue and the marginal cost for an output, x of a

**b)**commodity are provided by :

MR = five – 4x + 3x2 and MC = three + 2x

and if the fixed cost is zero, obtain the profit function and the profit when

the output is x = 4.

**3.**

**(**State different measures of Central tendency and explain their merits and

**a)**demerits.

**(**discuss the concept of Skewness and explain different measures of

**b)**Skewness.

**4.**

**(**discuss the collection and primary data by different methods and explain

**a)**their merits and demerits.

**(**describe co-efficient of variation and discuss its use.

**b)****5.**

**(**A box contains six red, four white and five black balls. A person draws four balls

**a)**from the box at random. obtain the probability that among the balls

drawn, there is atleast 1 ball of every colour.

**(**In a bolt factory, machines A, B and C manufacture respectively 25%,

**b)**30% and 45% of the total output. Of the total of their output 5, four and 2

percent are defective bolts. A bolt is drawn at random from the lot and is

obtained to be defectiv

**e.**What is the probability that it is manufactured

either by machine A or B ?

Earning: Approval pending. |