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Answer Sheet of this Question paper
Answer Sheet of this Question paper
PRAKASH - 09741410271/ 08722788493
BUSINESS STATISTICS
1.
The sample data from a research survey conducted in various cities on the
amount of time 13-15 year-old children spent with mobiles are as follows:
The sample data from a research survey conducted in various cities on the
amount of time 13-15 year-old children spent with mobiles are as follows:
City |
Time with mobiles (hours per week) |
Hyderabad |
46 |
Mumbai |
50 |
Pune |
46 |
Bangalore |
54 |
Bhubneshwar |
42 |
Indore |
30 |
Bhopal |
42 |
New Delhi |
50 |
Chandigarh |
46 |
For
the above sample, determine the following measures:
the above sample, determine the following measures:
i. The mean
ii.
The standard deviation
The standard deviation
iii.
The mode
The mode
iv.
The 75th percentile
The 75th percentile
Based
on your calculations comment on the time spent on mobile.
on your calculations comment on the time spent on mobile.
2.
‘Mumbai Ice Cream an ice cream store gives relationship between ice cream sold
and temperature. The store has taken a sample of a week’s data. Below you are
given the results of the sample
‘Mumbai Ice Cream an ice cream store gives relationship between ice cream sold
and temperature. The store has taken a sample of a week’s data. Below you are
given the results of the sample
Day |
Cones Sold |
Temperature |
1 |
350 |
110 |
2 |
200 |
100 |
3 |
210 |
90 |
4 |
100 |
80 |
5 |
80 |
70 |
6 |
70 |
60 |
7 |
50 |
50 |
i.
Which variable is the dependent variable?
Which variable is the dependent variable?
ii.
Compute the least squares estimated line.
Compute the least squares estimated line.
iii.
Is there a significant relationship between the sales of cones and temperature?
Is there a significant relationship between the sales of cones and temperature?
iv.
Predict sales of a 95 degree day.
Predict sales of a 95 degree day.
3.
According to one of the recent study conducted by an academic researcher on
international placement of students from leading institutes in India there is a
high variation in the salary offered by institutes. The following details have
been gathered from the placement institute of the colleges. The researcher
wants to understand the trends with regard to international placement based on
the data he has gathered.
According to one of the recent study conducted by an academic researcher on
international placement of students from leading institutes in India there is a
high variation in the salary offered by institutes. The following details have
been gathered from the placement institute of the colleges. The researcher
wants to understand the trends with regard to international placement based on
the data he has gathered.
Amount (in USD in lakhs per annum ) |
Age |
Marital Status |
Type of institute |
Gender |
2 |
35 |
Single |
University |
Male |
5 |
24 |
Married |
PGDM |
Male |
3.5 |
29 |
Married |
University |
Female |
5 |
26 |
Single |
University |
Male |
4 |
26 |
Married |
PGDM |
Female |
8 |
25 |
Single |
PGDM |
Female |
15 |
34 |
Married |
PGDM |
Male |
3 |
26 |
Single |
PGDM |
Male |
7 |
23 |
Single |
PGDM |
Male |
a.
Using descriptive statistics explore salary, and identify factors that appear
to influence the amount of the salary received.
Using descriptive statistics explore salary, and identify factors that appear
to influence the amount of the salary received.
b.
Do a correlation analysis between ‘Amount’ and ‘Age’ and interpreted the
coefficient of correlation.
Do a correlation analysis between ‘Amount’ and ‘Age’ and interpreted the
coefficient of correlation.
Need
Answer Sheet of this Question paper
Answer Sheet of this Question paper
PRAKASH - 09741410271/ 08722788493
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