Code No: 13
Time: 3hours Max.Marks:60
Answer any Five questions
All questions carry equal Marks
1. Explain nature and importance of Research and explain in detail various types of
Research.
2. Explain different methods for attitude measurement.
3. Differentiate Population Vs Sampling and explain different methods of sampling.
4.a) In an industrial establishment the coefficients of Variation of Wages of male and
female workers were 55% and 70% respectively. The standard deviations were Rs. 22 and Rs. 15.40 respectively. Calculate the combined average wages of all workers if 80% of the workers were male.
b) Define Skewness and explain different types of skewness and difference between
Dispersion and skewness.
5.a) Explain components of Time series
b) Fit a straight line equation by the method of least squares and estimate trend values.
Year 2001 2002 2003 2004 2005 2006 2007 2008
Production 80 90 92 83 94 99 92 104
6.a) Define Index numbers and explain their characteristics and uses.
b) Calculate Fisher's ideal index number and check whether it satisfies both factor
reversal and time reversal test from the following data,
Base year Current year
Commodities Price Quantity Price Quantity
A 10 5 15 4
B 12 6 16 3
C 8 9 10 5
D 6 3 9 3
7. Eight pots growing Barley plants were exposed to a high tension discharge, while nine similar pots were enclosed in a earthed wire cage. The number of tillers in each pot were as follows,
Find out whether Electrification exercises any real effect on tilling.
Cont….2
Caged: 17 27 18 25 27 29 27 23 17
Electrified 16 16 20 16 20 17 25 21 -
::2::
8. The number of arrivals of ships per day at a port is as given below,
Fit a Poisson distribution to the above test the goodness of fit by Chi-square test.
****
No of Arrivals 0 1 2 3 4 5 6 7 8 9 10
No of Days 20 53 80 83 64 34 18 8 3 1 1
No comments:
Post a Comment