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Q. 1. The frequency distribution of total annual emoluments of a sample of 100 executives working in multinational companies is given below:

Total Emoluments (in Rs Lac) |
02–06 |
06 –10 |
10-14 |
14 -18 |
18-22 |
22-26 |
26-30 |

Number of Executives |
10 |
15 |
30 |
18 |
12 |
09 |
06 |

Answer............

2. A population consisting of a certain proportion of defective items has mean μ = 2. If a sample of 4 items is examined and repeated 200 times, obtain a) probability of an item being defective, b) probability of getting 2 defective items in the sample, c) expected frequency of getting 2 defective items, and d) expected frequency of getting at the most 2 defective items. Is the resultant distribution skewed?

Answer.....

Q. 3. A research organization claims that the monthly wages of industrial workers in district X exceeds that of those in district Y by more than Rs 150. Two different samples drawn independently from the two districts yielded the following results:

District X:

District Y:

Verify at 0.05 level of significance whether the sample results support the claim of the organization.

Answer.....

Q. 4. The following data relate to marketing expenditure in Rs lac and the corresponding sales of a product in Rs crores. Estimate the marketing expenditure to attain a sales target of Rs 40 crores.

Marketing expenditure |
10 |
12 |
15 |
20 |
23 |

Product sales |
14 |
17 |
23 |
21 |
25 |

Answer. ........

Q. 5. Write short notes on:

i) Adjoint of a matrix

ii) Skewness and its measures

iii) Business forecasting

Answer. Adjoint is the transpose of the matrix formed by the.....

Skewness is a measure of symmetry, or more precisely, the lack of symmetry. A distribution......

Forecasting can be broadly considered as a method or a technique for estimating many future aspects of a business .....

## MS-08 Solved Assignment IGNOU MBA

This page is dedicated to IGNOU Master of Business Administration (MBA) MS-08 Quantitative Analysis for Managerial Applications Solved Assignment. You can download IGNOU MBA MS 8 Solved Assignments of 2015 July - Dec here.

##### Old Sample Answer

Q. Write a note on measures of central tendency.

Answer. Measures of central tendency are descriptive statistics that summarize the data with a single number that represents the most typical score within a set of data. We use measures of central tendency because we typically believe that most scores on a scale or responses to an item cluster around the typical or most common score or response in the data set. Consequently, a measure of central tendency is a convenient statistical tool for indicating the most typical score in a set of data. Selecting an appropriate measure of central tendency depends on the measurement scale used to represent a particular variable........... Measures of central tendency identify the middle or centre of a set of data. There are three types: Arithmetic average or mean – the total of items or scores in a set divided by the number of individual items in the set. It may give a distorted picture because of large items at either end of the scale. Median – the middle item in a range of items (often used in pay surveys when the arithmetic mean is likely to be distorted). Mode – the most commonly occurring item in a set of data......... The following are the few requirements to be satisfied by an average or a measure of central tendency: It should be rigidly defined The definition of an average should be clear and rigid so that there must be uniformity in its interpretation by different decision-makers or investigators. There should not be any chance for applying discretion; rather it should be defined by an algebraic formula.........