doe question paper(1)

8/3/2019 DOE Question Paper(1)

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3.a) To test the significance of the given yarn by weaving a fabric some amount of hariness index

is required. In order to verify the yarns which have a hariness index greater than 7 were conducted, the

following results are obtained from the randomly chosen yarns.

Hariness

index

5.5 6 8 6.5 7.6 6.3 5.5 8.2 10 8.5 5.3 7.3 6.8 5.2

b) Convert the given data into a chart

Geo Textiles 1 2 3 4 5 6 7 8

Usage 82 11.2 2.4 2.3 0.9 0.7 0.5 0.1

4. a) Analyze the given data by the using control chart. The number of defectives in garment for a

particular factory is below each lot consists of 400 garments.

Lot no 1 2 3 4 5 6 7 8 9 10 11 12

no. ofdefectives/lot 24 38 52 26 36 30 42 52 20 16 20 24


Count 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24

Frequency 1 1 3 3 3 3 3 16 16 10

5.a) Solve the given problem based on one way Analysis of variance. The size add on

percentage at three different squeezing pressures are given below

observation High medium Low

1 6.4 7.2 7.4

2 7 7.4 7.9

3 6.8 6.9 7.2

4 6.5 7 7.5

5 6.7 6.8 7.1


Count 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24

Frequency 1 1 3 3 3 3 3 16 16 10

2. a) Six garments are to be ranked in order to get general uniformity in appearance and that two

judges were asked to make the inspection all the 6 samples were given to each expert in turn and


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ranking was done from 1 to 6 represents the most uniform fabric. The rankings of the both judges

are as follows

Sample JudgeA

Judge B

A 2 3

B 1 2

C 5 6

D 6 4

E 4 5

F 3 1


Count 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24

Frequency 1 1 3 3 3 3 3 16 16 10

9.a) Analyze the given data using chi square distribution Two carding machines

where compared with respective number of neps generated per 10 gms

Machine no No of neps / 10 gram

Card 1 120

Card 2 80


Count 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24

Frequency 1 1 3 3 3 3 3 16 16 10

7.a) Find out the relationship between the loom speed and breakage rate, a study

was conducted and the following data were obtained also find breaks/hour at

275ppm.

Speed (ppm) 100 150 200 250 300

Breaks / hour 2 3 5 6 8

b)Convert the given data into a chartCount 23.1 23.2 23.3 23.4 23.5 23.6 23.7 23.8 23.9 24

Frequency 1 1 3 3 3 3 3 16 16 10

8.a) Analyze the given data whether the data follows the normally distributed or not


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Lapno

Lap wt Lapno

Lap wt

1 19.8 16 20.2

2 20.1 17 19.9

3 20.2 18 20.2

4 20.2 19 19.9

5 20.1 20 20.25

6 19.85 21 19.97 20.15 22 20.15

8 20.1 23 20.5

9 19.9 24 20.5

10 20.1 25 20.15

11 20.15 26 20

12 19 27 20

13 20.1 28 20.15

14 19 29 20

15 19.95 30 20.15


Geo Textiles 1 2 3 4 5 6 7 8

Usage 82 11.2 2.4 2.3 0.9 0.7 0.5 0.1

6.a) Solve the given problem based on two way analysis of variance. Perform a two way

anova to analyze the following data which relates the yield of cotton per acre

Fertilizer Cotton

1 2 3

1 2.33.22.5

2.93.03.4

3.13.63.3

2 3.22.62.6

3.44.13.5

2.32.63.2


Geo Textiles 1 2 3 4 5 6 7 8

Usage 82 11.2 2.4 2.3 0.9 0.7 0.5 0.1

doe question paper(1)

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