PASS SEMESTER QUESTIONS

       

   

Latihan tambahan

3 Julai 2014

1. Lakarkan rajah histogram bagi berat badan DKM5A mengikut langkah-langkah yang telah diterangkan di dalam kelas.

10 Julai 2014

1. Determine the average and standard deviation for the following data : (7 marks)
6.7    6.0    6.4     6.4    5.9      5.8
(Final Exam Dis 2013)

2. The life cycle of an instrument produced by a machine has a normal distribution with the mean of 12 months and standard deviation of 2 months. Determine the probability of the instrument produced by this machine will last        (9 marks)
i. Less than 7 months
ii. Between 7 and 12 months
(Final Exam Dis 2013)

3. Define the measures of central tendency between average, mode and median    (3 marks)
(Final Exam Jun 2012)

4. Table 1.0 shows the weight of 50 casting in kilograms are distributed.

Cell midpoint	Frequency
3	7
4	5
4	12
5	2
2	5
8	2

Based on the table, calculate the :
i  Average                 (8 marks)
ii Standard deviation      (4 marks)
(Final Exam Jun 2012)

5.b) Frequency tests of a brass rod 145 cm long give values of 1195, 1205, 1180, 1200 and 1190 vibration per second. Calculate mean, range and standard deviation.   (10 marks)

c) Given mean, µ = 10 and standard deviation, σ = 2.1 find : 
i. P(7.6 ≤ y ≤ 12.2)                      (3 marks)
ii.P(y ≥ 13)                              (3 marks)
iii. P(5.0 ≤ y ≤ 10.2)                    (3 marks)

(FINAL EXAM  JUN 2013)

17 Julai 2014

1.a) Define :
i. Zero defect/kecacatan sifar   (2 marks)
ii.Statistical Process Control / Kawalan Proses Statistik  
(2 marks)
iii.Continuous Improvement/Penambahbaikan berterusan   (2 marks)
(FINAL EXAM  JUN 2013)

2.Define the following terms:  
a) Quality       (2 marks)
b) Zero defect   (2 marks)
c) Six sigma     (2 marks) 
(FINAL EXAM  DIS 2013) 

3.List down THREE (3) differences between Total Quality Management and Traditional Management 
(6 marks)
(FINAL EXAM JUN 2012)

4. a) Describe the meaning of Quality Control and Zero Defects(3 marks)
b) Describe briefly FIVE (5) basic concepts of Total Quality Management (TQM)  (5 marks)
(FINAL EXAM DIS 2012)

7.08.2014 

1. a) Squawk Boxes, Inc. a speaker manufacturer, has a process that is normally distributed the following sample means and ranges for eight samples of size in Table 2.0(a). If specifications are determined to be 50 ± 25, use the table 2.0(a) to:
i) calculate the process capability index   (8 marks)
ii) abalyze the result  (2 marks)

sample	1	2	3	4	5	6	7	8
x̄	51.6	45.1	49.3	55.9	46.5	58.1	54.3	53.6
R	13.1	24.5	19.4	12.4	15.3	19.9	9.8	26.9

b) Forty sample means and standard deviations are observed on a measure of feed quality at the Bluegrass Horse Farm for samples of size 5, as shown in the Table 2.0(b).

i) construct x̄ and s charts for these data   (15 marks)

Subgroup number	x̄	s	Subgroup number	x̄	s
1	1.661	0.018	11	1.655	0.018
2	1.661	0.021	12	1.654	0.019
3	1.628	0.024	13	1.641	0.018
4	1.648	0.024	14	1.663	0.018
5	1.643	0.023	15	1.639	0.029
6	1.64	0.013	16	1.658	0.016
7	1.664	0.03	17	1.654	0.018
8	1.653	0.01	18	1.645	0.012
9	1.645	0.026	19	1.651	0.016
10	1.654	0.023	20	1.655	0.029