Master of Science I (Statistics)Examination: Oct Nov 2016
Semester III (New CBCS)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SB
702
Monday
21/11/2016
02.30 PM
to
05.00 PM
Planning and Analysis of
Industrial Experiments
C
XIII
Instructions: Answer any five questions.
Q. No. and Q. No. are compulsory.
Attempt any three from Q. No. to Q. No.
Figures to the right indicate full marks.
Total Marks:70
Q.1 A. Select the correct alternative: 05
The local control helps to
Reduce the number of treatments
Maintain the greater homogeneity of experimental units
Increase the no. of plots
None of these
In an Un-replicated design, error has degrees of freedom.
0 1
r*2k-1
Factorial experiments are conducted ina)
CRD RBD
Both and Neither nor
If there are five factors each at two levels and are conducted in two
replicates, then error d.f.-
0 r*2k-1
32 31
In resolution IV design all main effects area)
Clearly estimable Strongly clearly estimable
estimable None of these
B. Fill in the blanks: 05
There are and effects, mainly of interest in a
factorial experiment.
Fractional factorial experiments reduces
Central Composite Design is a
Yates procedure is used to calculate
In complete confounding effects is/are confounded in

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C. State whether following statements are true or false: 04
In Symmetrical factorial experiment all factors are at same lavel.
A Fractional factorial design is a connected design.
In 22 experiment, the contrast corresponding to main effect A is

Robust parameter design is a mathematical technique.
Q.2 A. Explain the terms: 08
1. First and Second order design
2. Central composite design
B. Explain with illustration: 06
Resolution of design
Minimum aberration design
Q.3 A. Describe stepwise procedure of construction and analysis of 2k-p experiment. 07
B. What is Taguchi array? Explain the use of Taguchi technique in an industrial
experiment.
07
Q.4 A. What is confounding? When we use confounding? 07
B.
Explain function of 3
n
experiments. Construct fraction of 3
3
experiment.
07
Q.5 A. What is Response Surface Methodology Explain various steps
involved in RSM.
08
B. What is fractional factorial experiment? Illustrate with one example. 06
Q.6 A. What do you mean by projection of factorial experiment? Illustrate with one
example.
07
B. Write lay-out of 23 in two replicates and complete analysis of the same
experiment.
07
Q.7 A. Explain basic principles of Design of Experiment. 07
B. What is complete and partial confounding? Illustrate with one example each. 07
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