Hemwati Nandan Bahuguna Garhwal University 2006 M.Com Commerce STATISTICS - Question Paper

1. explain tthe structure and function of the Central Statisical Organisation in India. What suggestion you would you like to provide to make it more useful and effective?
2. What do you mean by Statistical Quality Control? discuss its utility and need in an industry.
3. What do you understand by "Theoritical Frequency Distribution"? discuss the elements of Normal Distribution.
4. From the subsequent table interpole the railway freight rate for a distance of 2750 kms: Distance(Kms): 500,1000,1500,2000,2500,3000 Railway Freight(Rs): 50.50,90.50,128.5,160,190,220
5. If out of a pack of cards shuffled every time, king turns out 1st and the card is not restored. obtain out the probability of drawing the king 2nd time also.
6. There are five red and eight black balls in a bag.Two successive draws of three balls every are made,the balls not being changed after the draw.What is the chance that in the 1st draw the three balls were red and in the 2nd draw three balls were black balls?
7. find 2 regression equations from the subsequent data and estimate values of x and y corresponding to y=9 and x=6 respectively: x-6,2,10,4,8 y-9,11,5,8,7
8. 2 independent samples of eight and seven items respectively had the subsequent value.Is the difference ranging from the means of the samples significant?(for d.f.13,t.05=2.160). Sample I-9,11,13,11,15,9,12,14 Sample II-10,12,12,14,9,8,10
9. The subsequent outcomes were found in a survey.Find the association ranging from marial status and sucess in the exam both for boys and girls.
10. The subsequent outcomes were found in a survey.Find the association ranging from marial status and sucess in the exam both for boys and girls: Boys/Girls: No.of Appeared-800/200 Married-150/50 Married and successful-70/20 Unmarried and successful-550/110
11. Fit a straight line pattern by the lowest square method to the subsequent data.Also estimate the quantity of sale for 2005: Year-1975,1980,1985,1990,1995,2000 Sales(Lakh Rs)-12,15,17,22,24,30
12. What do you understand by analysis of time series?
13. Distinguish ranging from Association and Coorelation

Earning:   Approval pending.