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Practice Midterm
Name: ____________________
STAT 1100, 2084
1PM
2:30PM
4PM
Laurel Chiappetta
1.
(50 points) For each of the following examples, identify (if there are two variables, show data type for both):
Data type(s) as:
N
ominal,
O
rdinal, or
I
nterval
The most appropriate numerical display of the data (Graph) as:
1
Mean and SD,
2
Median and Quartiles,
3
Frequency
distribution,
4
Correlation,
5
Geometric Mean and spread,
6
Contingency table
The most appropriate graphical display of the data (numerical display, include both center and spread if applicable) as:
A
Bar Chart,
B
Pie Chart,
C
Histogram,
D
Time Series Plot,
E
Stem and Leaf Plot,
F
Box Plot,
G
Scatterplot
Data description
Data
type(s)
Numerical
Display
Graph
A company decides to investigate the amount of sick leave taken by its
employees.
A sample of employees is taken and number of days of sick
leave is recorded.
From a first look at the data by the human resource
manager, it appears that most employees are not taking any sick days,
but a few employees have taken almost a week of sick time.
N
O
I
1
2
3
4
5
6
A
B
C
D
E
F
G
The Metro Train Company was interested in knowing the educational
background of its customers.
In a survey of 50 commuters at the train
station, the commuters were asked to disclose their educational
attainment.
They would like to summarize the responses relative to each
other.
N
O
I
1
2
3
4
5
6
A
B
C
D
E
F
G
A hospital administrator wants to evaluate the survival status for
different types of surgery that is performed in her hospital.
She gathers
data on the type of surgery (planned or emergency) and the outcome of
the surgery (survived or died).
N  both
O
I
1
2
3
4
5
6
A
B
C
D
E
F
G
A company records the cost (in dollars) of 30 postal mailings made by
their accounting department.
The head of the department would like a
simple summary in which she can determine the shape of the overall
distribution but also be able to see the actual values.
N
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This note was uploaded on 06/25/2008 for the course BUSSPP MCE taught by Professor Atkins during the Spring '08 term at Pittsburgh.
 Spring '08
 Atkins

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