Tribhuvan University
Bachelor of Science in Computer Science and Information Technology
Semester 3 · Model question
Course Title: Statistics II (STA215)
Full Marks: 60Pass Marks: 24Time: 3 hours
Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Group A
(2 × 10 = 20)
- 1.10
The table below represents the yield of 4 x 4 experiment. Carry out the ANOVA
A18
B23
A15
C12
B16
C12
D17
D19
C23
A18
B18
A23
D19
D19
C20
B18 - 2.10
The following table give information about the blood pressure level of different age at different weight
Blood Pressure
147
125
160
118
149
128
Age
56
42
72
36
63
47
Wt
65
90
60
85
75
80What will be the blood pressure of a person at age 55 and having weight 85 kg. Also compute the standard error.
- 3.10
The following are the final examination marks of three group of students who were taught computer by three different methods.
Method I
94
88
91
74
87
97
Method II
85
82
79
84
61
72
80
Method III
89
67
72
76
69Are all three methods equally effective? Use H tests at 5% level of significance.
Group B
(8 × 5 = 40)
- 4.5
A sample size 100 produces the sample mean 16. Assuming population standard deviation 3, compute 99% confidence level for population.
- 5.5
There are two software developer in incubation officer. First developer face 21 box while applying 500 logics. similarly another developers faces 3 box in 100 logics. Are two developer differ significantly in their performance?
- 6.5
In 20 toss of a coin the following sequence of head(H) and tail(H) is obtained HHTTTHTHHHTTHHTTHHTT, Test at 5% level of significance whether the sequence is random.
- 7.5
If r_12 = 0.8, r_13 = 0.77 and r_23 = 0.69 then find R_2.13 and r_23.1
- 8.5
What is measurement of scale? Describe the various type of scale.
- 9.5
Define the stochastic process and classify.
- 10.5
Complete the following table for the analysis of variance of design.
S.V.
d.f
S.S
MSS
F
Blocks
3
45.5
?
?
Treatments
4
?
?
?
Error
?
?
3.6
?
Total
?
120.89Answer comingAlso asked in Model question
- 11.5
The following table gives the results of flower color and type of leaf.
Flower Color
Flat
Curled
Pink
2
30
Red
9
12Examine the vaccine has a effect in controlling the disease
- 12.5
Telephone calls arrives at telephone booth following Poisson distribution at an average of 5 minutes between one and next. The length of phone call is assumed to be experientially distributed with an average of 4 minute
- What is the probability that a person arriving at the booth will have to wait?
- What is the average length of queue that forms time to time?
— The End —