STAT1011
Tutorial 11
1
Outline
Exercises related to hypothesis tes9ng for
dierence
between two popula9on means
Dependent Samples(e.g. matched pairs, before-
aEer experiment)
Independent Samples
Between two popula9o

STAT1011
Tutorial 6
1
Outline
Find
p-value/z-value/t-value in tables
Exercises related to confidence interval
Confidence Intervals for the mean.
When is known
When is unknown
Confidence Intervals for proportions
Confidence Intervals for variances a

Topic 1: Exercises
Q3
Figure 1 below shows the profits of ABC company from 2000 to 2004. To show the
companys profit from 1990-2004 to shareholders, the managing director added the profit of
the company in 1990 to the graph (Figure 2).
(Figure 1)
(Figure

Topic 7 Tutorial Questions
Q1
The following data represent the responses (Y for yes and N for no) from a sample of 40 college
students to the question Do you currently own shares in any stocks?
N
N
N
N
Y
N
N
N
N
N
Y
N
N
N
N
N
N
N
Y
N
N
Y
N
N
Y
N
N
N
N
Y
Y

Topic 2: Probability
Q4
If there are 10 multiple-choice questions on an exam, each having three possible answers,
how many different sequences of answers are there?
Q5
You would like to build-your-own-burger at a fast-food restaurant. There are five diffe

Topic 1: Solutions
Q1
a)
b)
c)
d)
Numerical, discrete
Numerical, continuous
Categorical
Categorical
Q6
The 3-D display makes it difficult to read the bars. Focusing at the front of each bar, the side
of each bar, or the back of each bar will give differen

SPECIFIC RESPONSIBILITIES (GENERAL MANAGER)
Build and propose local strategies (in line with regional and global strategies) on all
targeted segments and channels.
Build, develop and monitor the annual business plans and budget (which included but not
lim