Sikkim Manipal University Assignments Answers

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SMU MBA Statistics for Management Assignment

PART - A

Q. 1 _____ survey is a small trial survey (survey of a few
units) undertaken before the main survey is conducted
A) Pre
B) Proto
C) Pilot
D) Prototype

Q. 2 _____ tests enable us to test whether more than
two population proportions can be considered equal
A) Chi-square
B) F
C) Variance Ratio
D) Hypothesis

Q. 3 Frequency distribution of a single variable is called
_____ frequency distribution
A) Univariate
B) Multivariate
C) Bivariate
D) All of the above

Q. 4 _____ is/are used to measure the strength of
relationships between variable
A) Correlation
B) Regression
C) Both A) and B)
D) None of the above

Q. 5 When the probability of the occurrence of an event
is dependent on, or effected by in some way the
occurrence of another event or some other event, then
the events are known to be _____
A) Mutually Exclusive
B) Independent
C) Statistically Dependent
D) None of the above

Q. 6 T\here are _____ percentiles for a frequency
distribution
A) 4
B) 16
C) 99
D) 100

Q. 7 _____ is used in testing the goodness of fit of a
theoretical distribution
A) a2
B) x2
C) y2
D) z2

Q. 8 ANOVA stands for
A) Analysis over variable
B) Analysis of variable
C) Analysis over variance
D) Analysis of variance

Q. 9 Whenever we reject the hypothesis, the conclusion
we do accept is called the _____ hypotheseis
A) Null
B) Zero
C) Choice
D) Alternative

Q. 10 _____ assumes a constant percentage increase each
year
A) Arithmetic trend
B) Semi Log trend
C) Modified Exponential Curve
D) Logistic Curve

PART - B

Q. 1 In case of continuous frequency distribution, in the
median formula, c and m stand for _____
A) Cumulative Frequency, Median Class
B) Cumulative Frequency, Cumulative Frequency corresponding to the class preceding the median class
C) Width of the Median Class, Cumulative Frequency corresponding to the class preceding the median class
D) Width of the Median Class, Median Class

Q. 2 Calculate Mean Deviation from median.
Number of T.V. sets sold: 18, 16, 16, 19, 12, 14, 20
A) 2.143
B) 2.431
C) 2.453
D) 2.521

Q. 3 The assumptions used in Testing of Hypothesis are:
1. Use sample results to decide whether to use a twotailed,
upper- tailed, or lower-tailed test
2. Before any data are collected, the form of the test is
determined by what the decision ma
A) Only 1
B) Only 2
C) 1 and 2
D) None of the above

Q. 4 State the True points with regards to Random
Sampling:
1. Systematic sampling, stratified sampling, and cluster
sampling attempt to approximate simple random
sampling
2. The principles of simple random sampling are the
foundation f
A) 1-T, 2-T
B) 1-T, 2-F
C) 1-F, 2-T
D) 1-F, 2-F

Q. 5 Weighted Index Numbers can be divided into:
1. Simple Aggregative Method
2. Simple Average of Relatives Method
3. Weighted Aggregative Method
4. Weighted Average of Relatives Method
A) 1 and 2
B) 3 and 4
C) 1 and 3
D) 2 and 4

PART - C

Q. 1 For the following data, find the quartile deviation
and the coefficient of quartile deviation.
No. of fruits per basket: 36 43 30 37 38 35 29 38 35 32
35 36
A) 32.75, 32.75
B) 32.75, 37.75
C) 37.75, 32.75
D) 37.75, 37.75

Q. 2 A bank calculates that its individual savings
accounts are normally distributed with a mean of Rs.
2,000 and a standard deviation of Rs. 600. If the bank
takes a random sample of 100 accounts, what is the
probability that the sample mean w
A) 0.4525
B) 0.2967
C) 0.7492
D) 0.83

Q. 3 Assume that we have one box containing 10 balls
distributed as follows:
3 Colored and Dotted
1 Colored and Striped
2 Gray and Dotted
4 Gray and Striped
What is P(D/G), P(S/G), P(G/D) and P(C/D)?
A) 2/3, 1/3, 2/5, 3/5
B) 1/3, 2/3, 3/5, 2/5
C) 1/3, 2/3, 2/5, 1/5
D) 1/3, 2/3, 2/5, 3/5

Q. 4 The probabilities of three events, A, B & C, occurring are
P(A) = 0.35, P(B) = 0.45 and P(C) = 0.2. Assuming that
A, B and C has occurred the probabilities of another
event X occurring are: P(X/A) = 0.8, P(X/B) = 0.65 and
P(X/C) = 0.3.
A) 0.4427, 0.4625, 0.0949, 0.6325
B) 0.6325, 0.4427, 0.4625, 0.0949
C) 0.4427, 0.6325, 0.4625, 0.0949
D) 0.4427, 0.4625, 0.6325, 0.0949

Q. 5 The important measures for Central Tendency are:
1. Arithmetic Mean
2. Median
3. Mode
4. Geometric Mean
5. Harmonic Mean
A) 1, 2 and 3
B) 1, 2, 3 and 4
C) 2, 3, 4 and 5
D) All of the above