STAT*2060: Statistics for Business Decisions
Practice Questions
SET 12 (Short) SOLUTIONS
This set of practice questions also covers the standard normal distribution.
1. Let Z N (0, 1) (By this notation we mean that z is normally distributed with a mean of
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 18 (Short)
This set of practice questions covers one-sample hypothesis tests.
1. In a random sample of 100 batteries produced by Battery corp, the average lifetime was 150 hours. It
is kn
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 16 (Short) SOLUTIONS
This set of practice questions cover one-sample confidence intervals.
Note: Remember that we are doing things differently to the text and not going to distinguish bet
STAT*2060: Statistics for Business Decisions
Practice Questions
Set 10 (Short) SOLUTIONS
Provided for practice only. Not to be handed in.
This set of practice questions also covers the continuous uniform distribution.
1. Let X U (10, 30) (By this notation
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 19 (Short) SOLUTIONS
This set of practice questions covers two-sample hypothesis tests.
1. An architect who designs commercial rental spaces needs to choose a type of wooden panelling for
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 13 (Short) SOLUTIONS
This set of practice questions also covers the standard normal distribution.
1. Let z N (0, 1) (By this notation we mean that z is normally distributed with a mean of
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 18 (Short) SOLUTIONS
This set of practice questions covers one-sample hypothesis tests.
1. In a random sample of 100 batteries produced by Battery corp, the average lifetime was 150 hours
STAT*2060: Statistics for Business Decisions
Practice Questions
Set 19 (Short)
This set of practice questions covers two-sample hypothesis tests.
1. An architect who designs commercial rental spaces needs to choose a type of wooden panelling for a
certain
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 16 (Short)
This set of practice questions cover one-sample confidence intervals.
Note: Remember that we are doing things differently to the text and not going to distinguish between large
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 17 SOLUTIONS
This set of practice questions cover two-sample confidence intervals.
Note: Remember that we are doing things differently to the text and not going to distinguish between lar
STAT*2080: Introductory Applied Statistics I
Practice Questions
SET 11 SOLUTIONS
This set of practice questions covers the standard normal distribution.
1. Let Z N (0, 1) (By this notation we mean that Z is normally distributed with a mean of 0 and a
stan
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 17 (Short)
This set of practice questions cover two-sample confidence intervals.
Note: Remember that we are doing things differently to the text and not going to distinguish between large
PART I:
Group 1 Life Expectancy Histogram
10
9
8
7
6
5
4
3
2
1
0
Less than 50 50-55
55-60
60-65
65-70
70-75
75-80
80-85
75-80
80-85
Group 0 Life Expectancy Histogram
35
30
25
20
15
10
5
0
Less than 50 50-55
55-60
60-65
65-70
70-75
Group 0 Life Expectancy
"X-Variable: Geographic
Health
Location:
"Y Variable: Expenditure North and
Life
s, (% of
South
Country
Expectancy" GDP)"
(North is 0)
Afghanistan
60
8.1
0
Albania
78
5.9
0
Algeria
75
6.6
0
Angola
52
3.8
1
Argentina
76
7.3
1
Armenia
75
4.5
1
Australia
82
Dummy
Y Variable:
Variable:
Life
X Variable: North or
Expectancy Healthcare South of the
(Age in
Expenditure Equator
Country
Years)
(% of GDP) (North is 0)
Afghanistan
60
8.1
0
Albania
78
5.9
0
Algeria
75
6.6
0
Angola
52
3.8
1
Argentina
76
7.3
1
Armenia
7
Part I
A) Sampling Method
To create the random samples I used the random function on excel. By generating a
column of random values corresponding to the Y values of the observations and sorting them
lowest to highest creates a randomly ordered list of obs
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 11 (Short)
This set of practice questions covers the standard normal distribution.
1. Let Z N (0, 1) (By this notation we mean that Z is normally distributed with a mean of 0 and a
standa
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 14 (Short) SOLUTIONS
This set of practice questions covers the normal distribution and important transformations.
1. The mass of an adult loon is normally distributed with a mean mass of
STAT*2060: Statistics for Business Decisions
Practice Questions
Set 10 (Short)
Provided for practice only. Not to be handed in.
This set of practice questions also covers the continuous uniform distribution.
1. Let X U (10, 30) (By this notation we mean t
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 14 (Short)
This set of practice questions covers the normal distribution and important transformations.
1. The mass of an adult loon is normally distributed with a mean mass of 10 pounds
STAT*2060: Statistics for Business Decisions
Practice Questions
SET 15 (Short)
This set of practice questions covers the normal distribution, important transformations and sampling distributions of the sample mean.
1. An adult loon has a mean mass of 10 p
STAT*2080: Introductory Applied Statistics I
Practice Questions
SET 15 (Short) SOLUTIONS
This set of practice questions covers the normal distribution, important transformations and sampling distributions of the sample mean.
1. An adult loon has a mean ma