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Important Questions for "Quantitative Techniques":

[1]

  1. Explain the meaning and importance of correlation.
  2. Discuss in brief about economic research.
  3. Discuss the objectives of regression analysis. Why are there two regression lines? Under which condition may there be only one regression line?

[2]

  1. Explain Quantitative techniques of Forecasting.
  2. Explain the purpose of sales forecasting.
  3. Outline the characteristics of Production Management.

[3]

  1. Mean of 100 items is found to be 30. If at the time of calculation, two items are wrongly taken as 32 and 12 instead of 23 and 11, find the correct mean.
  2. Discuss the merits and demerits of Karl Pearson's coefficient of correlation.
  3. What is Spearman's rank correlation? Bring out its usefulness. How does the coefficient differ from Karl Pearson's coefficient of correlation?

[4]

  1. Fit a straight line trend by the method of least squares for the given data.
  2. Calculate the value of Log 656 by Lagrange method using the given data.
  3. What are the other measures based on standard deviation? What is meant by time series?

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