1. (a) ‘Statistics is the backbone of decision-making’. Comment. [ 5 marks] (b) Give plural meaning of the word Statistics? [ 5 marks] 2. a. In a bivariate data on ‘x’ and ‘y’, variance of ‘x’ = 49,...

Fall 2011 - August drive MBA SEMESTER 1 MB0040 STATISTICS FOR MANAGEMENT - 4 Credits (Book ID: B1129 ) Assignment Set - 1 (60 Marks) Note: Each question carries 10 Marks. Answer all the questions 1. ( - [ 5 marks] (b ) Give plural meaning of the word Statistics? [ 5 marks] 2. 9 and covariance ( x,y) = - 17.5. Find coefficient of correlation between [ 5 marks] b. Enumerate the factors which should be kept in mind for proper planning. [ 5 marks] 3. The percentage sugar content of Tobacco in two samples was represented in table 11.11. Test whether their population variances are same. [ 10 marks] Table 1 . Percentage sugar content of Tobacco in two samples Sample A 2.4 2.7 2.6 2.1 2.5 Sample B 2.7 3.0 2.8 3.1 2.2 3.6 4. a. Explain the characteristics of business forecasting. [ 5 marks] b. Differentiate between prediction, projection and forecasting. [ 5 marks] 5. What are the components of time series? Bring out the significance of moving average in analysing a time series and point out its limitations. [ 10 marks] 6. Li st down various measures of central tendency and explain the difference between them? [ 5 marks] b. What is a confidence interval, and why it is useful? What is a confidence level? [ 5 marks] Fall 2011 - August drive MBA SEMESTER 1 MB0040 ...