Take Home Assignment 2
Bivariate Data & Probability
Question 1
Calculate by Hand
Calculate by hand the covariance and correlation coefficient of the following set of bi-variate data,
assuming they are
BSB123 ASSESSMENT ITEM 2
Research Report Task total weighting 20%
Rationale
In this task, you will have the opportunity to deepen your understanding of the relevant statistical
concepts and techniques
Column D
Total Result
Count - Column D
Distribution of Exam results
12
10
8
6
4
2
0
Total Result
Column D
Total Result
Count - Column D
Quiz
12
10
8
6
4
2
0
Total Result
EXAM
5
5.5
6
6.5
7
7.5
8
8.5
9
Assessment Item 3: Portfolio Part I
Title:
Portfolio
Purpose:
To identify and discuss areas for professional development
Length:
1000 words (excluding title page and references list)
Group or Individu
SSQ: Hypothesis testing part 2
Question 1
Assume that you have a sample of n1 = 8 with sample meanX1 = 42 and a sample standard deviation
of S1 = 4, and you have an independent sample of n2 = 15 with
BSB123 ASSESSMENT ITEM 2
Research Report Task total weighting 20%
Rationale
In this task, you will have the opportunity to deepen your understanding of the relevant statistical
concepts and techniques
Take Home Assignment (Topic 3) Probability
Show all workings.
Question 1
Filling orders
Andrew, Britney and Chris fill orders in a fast-food restaurant. The table below records the
numbers of correct
lOMoARcPSD
Revision Notes, Data Analysis, 7-12 courses
Data Analysis (Queensland University of Technology)
Distributing prohibited | Downloaded by Rachel Bau ([email protected])
lOMoARcPSD
Data Ana
Instructions:
Answer ALL questions in the examination booklet. You are required to show your workings
unless stated otherwise. Total mark for this paper is 50.
Question 1
(a)
A machine produces a comp
Take Home Assignment 4
Continuous Probability Distributions
Question 1
Soda Water
A soft drink factory fills cans of soda water by setting a timer on a filling machine. It has been
found that the dist
1
BSB 123 DATA ANALYSIS NOTES
LECTURE 1: INTRODUCTION TO STATISTICS
INTRODUCTION TO EXCEL
LECTURE NOTES
Key Definitions
Population: members of a group about which you want to draw a conclusion ie. al
BSB123 SAMPLE FINAL EXAM
QUESTION 1
The ABS has reported that at June 2004, 51.8% (7,820) of businesses in caf and restaurant
services had access to the Internet while 20.7% had a web presence. Suppos
Workshop 2: Presenting Data & Introduction to Descriptive Measures
Excel
When calculating numerical measures we can use the built-in functions:
o Mean: =AVERAGE(data)
o Median: =MEDIAN(data)
o Mode:
Workshop 1: Introduction to Statistics and Excel
Question 1
The following information is collected from students as they leave the campus bookshop during the
first week of classes:
(a)
Amount of time
Question 1
1.
In a left-skewed distribution
the median equals the arithmetic
mean
the median is less than the
arithmetic mean
the median is larger than the
arithmetic mean
none of the above
0.5 points
Tute 8
Hypothesis Testing
In conclusion there should be:
1) What to do with Ho
2) What is the significance level
3) Need to put answer into context
Two approaches:
1) Critical value approach:
a. Use t
EXAMPLE EXAM QUESTION: FROM TOPIC 1
A RESEARCHER HAS COLLECTED DATA ON THE NUMBER OF BUS PASSENGERS ON EACH OF SEVERAL CITY BUS ROUTES. THE DATA COLLECTED WOULD BE CLASSIFIED AS _ AND _.
CATEGORICA
Training Method
A
B
56
59
50
54
52
55
44
65
52
52
47
57
47
64
53
53
45
53
48
56
42
53
51
57
42
43
44
because ratio of varience is less than 2, and the st dev are so close to eachother I am going to us
Z-TESTING FOR MEAN - Z-DISTRIBUTION (KNOWN )
Test the assumption or status quo that the true mean of TV
sets in U.S. homes is equal to 3. Assume = 0.8
The average cost of a hotel room in New York is s
SGT 1: Introduction to Statistics and Excel
The first study group tutorial (SGT) session is designed to give everyone a chance to meet, as well
as an opportunity to review why data analysis is importa
Symbols - Sum of
- Pi
s- standard deviation
- mean
n- sample size
level of significance a
X- each score
- standard deviation
d.f- t distribution n-1
x bar- sample mean
Topic 8 - Estimation
Topic 1
Name
GUID
Format Range
Variable Layout
Variable Names In Cells
Variable Names In 2nd Cells
Data Set Ranges
Data Sheet Format
Formula Eval Cell
Num Stored Vars
Data Set #3
DG1E495E61
0
Columns
1
1
#REF
Workshop 10: Hypothesis testing part 2
(Solutions provided in class OR via online videos)
Question 1
A consumer organisation is concerned about the increase in the level of credit card debt of young
c
Workshop 2: Presenting Data & Introduction to Descriptive Measures
Excel
When calculating numerical measures we can use the built-in functions:
o Mean: =AVERAGE(data)
o Median: =MEDIAN(data)
o Mode:
Workshop 3: Numerical Descriptive Measures
Excel
When calculating numerical measures we can use the built-in functions:
o Sample standard deviation: =STDEV(data)
o Population standard deviation: =STD
Workshop 2: Presenting Data & Introduction to Descriptive Measures
Excel
When calculating numerical measures we can use the built-in functions:
o Mean: =AVERAGE(data)
o Median: =MEDIAN(data)
o Mode:
RESEARCH REPORT
Assessment Item 2
Tyler Bickhof
Student Number:
09707191
Tutor: Jason Hay
INTRODUCTION
This report aims to analyse and interpret data taken from a sample of students studying BSB123 in
Student Name: Saifon Pholdongnok
Student ID: 10081551
Take Home Assignment 6
Estimation
Question 1
Assertion-Reason Questions
Each question below consists of an assertion and a reason. Indicate your a
Take Home Assignment 4
Continuous Probability Distributions
Soda Water
A soft drink factory fills cans of soda water by setting a timer on a filling machine. It has been
found that the distribut
Take Home Assignment 2
Bivariate Data & Probability
Question 1
Covariance and Correlation coefficient
The table below shows a set of bivariate data: X and Y.
(a)
Calculate the covariance and correlati