Rating : GRADE A QUALITY DIFFERENT ASSIGNMENT TO DIFFERENT USER
Course Code : MS 08
Course Title : Quantitative Analysis for Managerial Applications
Assignment No. : MS-08/TMA/SEM-I/2019
Coverage : All Blocks
Note : Attempt all the questions and submit this assignment on or before 30
th
April, 2019 to the coordinator of
your study center.
- “The field of statistics provides the methods for collecting, presenting and meaningfully interpreting the
given data”. What are these methods? Explain them.
- You are supplied the following data about height of boys and girls studying in a college.
Boys Girls
Number 72 38
Average height (inches) 68 61
Variance of distribution 9 4
You are required to find out:
(a) In which sex, boys or girls, is there greater variability in individual heights.
(b) Common average height in boys and girls.
- In an aptitude test administered to 900 college students, the mean is 50 and the standard deviation is 20.
Find:-(i) The number of students securing between 30 and 70.
(ii) The number of students exceeding the score of 65.
(iii) The value of the score exceeding by the top 90 students.
- Strength tests carried out on samples of two yarns spun to the same count gave the following results:-No. in sample Sample mean Sample variance
Yarn A 4 50 42
Yarn B 9 42 56
The strength are expressed in pounds. Does the difference in mean strengths indicate a real difference in
the mean strengths of the yarns? Apply appropriate test and comment.
- Write short notes on any three of the following:-(i) Type I and Type II error
(ii) Primary Data vs Secondary Data
(iii) Correlation Coefficient
(iv) Probability Sampling Methods
(v) Guidelines for choosing the classes.
