Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 700/semester only.
if urgent then call us
on 08791490301, 08273413412
DRIVE Spring 2015
PROGRAM- MBADS/ MBAFLEX/ MBAHCSN3/
MBAN2/ PGDBAN2
SEMESTER- 1
MB0040-
STATISTICS FOR MANAGEMENT
Q1 Distinguish between
Classification and Tabulation. Explain the structure and components of a Table
with an example.
·
Meaning
of Classification and Tabulation
·
Differences
between Classification and Tabulation
·
Structure
and Components of a Table with an example
Answer.
Meaning of
Classification and Tabulation
Classification
According to Secrist,
“Classification is the process of arranging data into sequences and groups
according to their common characteristics or separating them into different but
related parts”. According to Stockton and Clark, “The process of
Q2. (a) Explain Arithmetic mean. 3
(b) The mean wage is Rs. 75 per
day, SD wage is Rs. 5 per day for a group of 1000 workers and the same is Rs.
60 and Rs. 4.5 for the other group of 1500 workers. Find the mean and standard
deviation for the entire group. 7
Answer:
(a) Arithmetic mean: Arithmetic mean is defined as the sum of all values
divided by number of values and is represented by X . Arithmetic mean is
also called ‘average’. It is most commonly used measures of central tendency.
Arithmetic Mean of a series is the value obtained by adding all the
observations of a series and dividing this total by the number of
Q3. Mr.
Arun and Mr. Bhandari play a game. If Mr. Arun picks up an even number from 1
to 6, Mr. Bhandari will pay him double the amount equal to picked up number. If
Mr. Arun picks up an odd number then he has to pay amount equal to double the picked
up number. What is Mr. Arun’s expectation? 10
Answer:
Solution: Let Xi be the random variable and
P(Xi) be its probability. The probabilities are indicated in table.
Required Values for Calculating Mean and
Variance for the Data
Q4. The probability that an
employee will get an occupational disease is 20%. In a firm having five
employees, what is the probability that:
i) None of the employees get the
disease 4
ii) Exactly two will get the
disease 3
iii) More than four will contract
the disease 3
Answer:
Solution
Given
that:
p
= 20/100
= 0.2
\ q
=1-0.2
= 0.8
Q5. Microsoft estimated that out of
10,000 potential software buyers, 35% wait to purchase the new OS Windows
Vista, until an upgrade has been released. After an advertising campaign to
reassure the public was released, Microsoft surveyed 3000 buyers and found 950
who are still skeptical. At 5% level of significance, can the company conclude
that the population of skeptical people had decreased? 10
Answer:
Solution:
The procedure is explained in the
following steps:
1.
Null
hypothesis Ho
Q6. Explain Chi-square test and the
conditions for applying chi-square test. (Meaning, Conditions) 5, 5
Answer:
Chi-Square test: The Chi-square test is one of the
most commonly used non-parametric tests in statistical work. The Greek
Letter c2 is used to denote this test. c2 describe
the magnitude of discrepancy between the observed and the expected frequencies.
The value of c2 is
Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 700/semester only.
if urgent then call us
on 08791490301,
08273413412
No comments:
Post a Comment