School of Computing, Engineering and Mathematics
Assignment - Statistics for Business (200032)
Group
Member
Name
ID
1
Thomas Daley
Signature
17674515
2
3
4
Note:
(1) This assignment is to be completed in self-selected groups (maximum of 4 students). The
g

SAMPLE EXAM AUTUMN SESSION
School of Computing, Engineering and Mathematics
Complete your details in this section when instructed by the Exam Supervisor at the start of the exam.
You should also complete your details on any answer booklets provided.
STUDE

CHAPTER 17
Additional tests for nominal
data: Chi-squared tests
Chapter outline
17.1
Chi-squared test of a multinomial experiment
17.2
Chi-squared test of a contingency table
17.3
Chi-squared test for normality
17.4
Summary of tests on nominal data
Introd

Chapter 13
Hypothesis testing: Describing a single
population
Chapter outline
13.1 Concepts of hypothesis testing
13.2 Testing the population mean when the variance
2
is known
13.3 The p-value of a test of hypothesis
13.4 Testing the population mean when

Solutions for selected exercises - Ch13
Excel Note: Prior to attempt the Excel solutions for these exercises you need to go through the
Excel commands, details and printouts for Ch13 Examples.
13.2
Use Z table to confirm this value. Since
Alternative is o

CHAPTER 11
Estimation:
Describing a single population
11.2
Example 1
(Example 11.1, page 375)
XM11-01 The sponsors of television shows targeted at
children wanted to know the amount of time children
spend watching television, since the types and number
of

CHAPTER 11
Estimation: Describing a single
population
Chapter outline
11.1
Concepts of estimation
11.2
2
Estimating the population mean when the population variance is known
11.3
2
Estimating the population mean when the population variance is unknown
11.

Solution for selected exercises Ch11
Manual and Excel details.
We can find the z value using table or excel as we did in ch10. =NORMINV(A,0,1) where A=Alpha/2
=NORMINV(0.005,0,1) -2.57583
Or =NORMSINV(0.005)-2.57583
Excel solution using raw data: Enter or

Chapter 8
Continuous probability
distributions
Chapter outline
8.1
Probability density functions
8.3
Normal distribution
8.2
Introduction
A continuous random variable is one that can assume an uncountable number of
values in an interval [a,b].
We cannot l

Chapter 7
Random variables and discrete
probability distributions
Chapter outline
7.1
Random variables and probability distributions
7.2
Discrete probability distributions
7.3
Expected value and variance
7.6
Binomial distribution
7.1 Random Variables and

TB Ch7 Excel instructions Page 288.
Binomial Probabilities using excel function
Whwn n=10,p=0.2 we can find probability of x=3 as below
Function/command
p(x=3) =BINOMDIST(3,10,0.2,FALSE)
p(x=<3) =BINOMDIST(3,10,0.2,TRUE)
obability of x=3 as below
result
0

Correlation
Column 1 and Column 2
Pearson Coefficient of Correlation -0.8083
t Stat
-13.5889
df
98
P(T<=t) one tail
0
t Critical one tail
1.6606
P(T<=t) two tail
0
t Critical two tail
1.9845
Price (y) Odometer (x)
16.0
15.2
37.4
44.8
15.0
45.8
17.4
17.4
1

Mathematics Education Support Hub
Statistics for Business sample exam questions Spring 2016
This revision worksheet includes questions from the Statistics for Business Autumn 2014 exam
paper as well as a number of extra questions (for practice). Thus, it

Solutions to practice exercises in week 2
3.2
mode = 4.3, median = 4.3, mean = 4.09
Cafes in the local area charge an average of $4.09 for a large take-away mocha coffee.
The most frequently occurring price is $4.30. 50% of the cafes charge $4.30 or
less

RA'CTICE PROBLEMS
Practising the calculations
assume 5‘” 3.1 Determine the mode, median and mean of
the following data. ' '
248462784389435
Testing your understanding
8. " 3.2 The owner of a new cafe is wondering
how its prices compare with others in

Solutions to practice exercises in week 1
1.5
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
continuous
continuous
ordinal
nominal
continuous
continuous (in fact discrete, but usually treated as continuous for analysis)
nominal
continuous
1.7
(a)
(b)
(c)
The population

interest and a sample is a subset of the population. A sample
shoald be selected in such a way that it is representative of the
population. A census is the process of collecting data on the
whole population at a given point in time.
The two steps in analy

SFB 2015.2 Class Test 2 - Key Revision Points
Week 4
Discrete Distributions
Use probability distribution table to find mean or expected value = E(x), variance
2, standard deviation
Binomial Distribution
Poisson Distribution
Week 5
Normal Distribution.

{VI-f" t -ri /‘ d “ \
Unrversrty of
Western Sydney
Pathways to University UwscoLLEGE
Student Name:
Student Signature: UWS ID:
Tutor Name: Group:
Diploma in Business
Class Test 2 — Practice Exercise
700007 Statistics for Business
Practice Weighting: 0%
Max

Pathways to University
Diploma in Business
700007 Statistics for Business
Final Exam Practice Qs 3
Blank Page
Question 1
The data below gives the amounts (in $) that people in Sydney and Darwin spend on weekends.
Sydney:
240, 145, 410, 120, 170, 103, 137,

Sample Questions SFB 200032
Christopher Wilson 2016
This is an open-book examination which determines whether you are able to employ
the appropriate statistical methods and techniques in given situations. The
examination paper consists of 6 major question

Find the Mean, Standard Deviation,
Median and Interquartile Range.
Page 1 of 23
Q1a
i.
Calculate and determine the act with the largest expected monetary value.
ii. Determine the value of perfect information.
Page 2 of 23
Q1b
iii. Draw up an opportunity l

200032 STATISTICS FOR BUSINESS
School of Computing and Mathematics
Produced By Christopher Wilson
Professional Academic Tutor
Referencing the work of
Hopkins, N 2009, 200032 Statistics for Business: study guide, Spring session, University of Western Sydne