NMIMS - Decision Science

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NMIMS

Master of Business Administration - MBA Semester 2

Decision Science

Q1. Identify the type of the variable in the following table given below:-

	Variable	Data Type
A	Gender
B	Education Background
C	Satisfaction
D	Motivation
E	Exchange Rate
F	Gold Price
G	Preference of cars

Q2. Following data of performance scores is available of employees working with a company. You are required to perform the following:

a. Make the frequency distribution, Calculate the frequency and the Cumulative frequency

b. Calculate the mean, median, quartiles and Mode

c. Calculate the variance and the standard deviation.

Answer. a) Make the frequency distribution, Calculate the frequency and the Cumulative frequency

Q3. a. In continuation with the data of performance scores of employees in previous example, perform the following:

a. Calculate the range and inter-quartile range

b. Calculate the z scores

c. Calculate the skewness and Kurtosis (using excel)

d. Comment on the distribution of the data

3. b. In continuation with the data of performance scores of employees in previous example, perform the following:

a. Make the histogram

b. Plot the box-plot diagram

c. Plot the frequency polygon

d. Plot the Ogive diagram

Answer. a. Calculate the range and inter-quartile range

Range

The range often is defined as the difference between the largest and smallest numbers.

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