Mori Akihiko 1
Akihiko Mori
Li, Eugene
STATS1181-001
05 June, 2014
Assignment #2
1) Frequency Distribution
a) Frequency Distribution
Amount of 20 Companies for each Industry (Fortune, April 17, 2000)
Aerospace
Beverage
Chemicals
Electronics
Food
Amount of
1Langara College
Stat 1181- Midterm #1a
Summer 2014
First Name:
Last Name:
Student No.
This exam booklet contains 5 questions on 8 numbered pages (including this
page). Check your copy NOW. This is NOT an open-book exam. All textbooks
and notes must be st
Stat 1181
Summer 2016
Stat 1181
Assignment #4 (Total 26 marks) (Due July 12, 2016)
1.
When people turn to for news is different for various age groups. A study
indicated where different age groups primarily get their news:
Age Group
Media
Local TV
Nationa
Stat 1181
Assignment 5 (34 marks) (Answer Key)
(Note: For question 4, make sure you check requirements for using the CLT)
1.
(a) There are 12 identical trials (pick 12 travelers)
There are two possible outcomes (carry a device and not carry a device)
The
Stat 1181
Answer Key for Assignment #1 [34 marks]
#1 [5 marks]
(a)
(b)
(c)
(d)
(e)
All the post-secondary students in British Columbia.
The 1210 post-secondary students from UBC and SFU.
Parameter: The percentage (or more accurate, the proportion) of all
Stat1181 Sections 1&2
2014 Summer 1
Assignment #1 (34 marks) (Due May 22)
1. [5 marks] An article in a newspaper read, 43% of all post-secondary students in B.C. have
studied at least one statistics course in their post-secondary studies. After you had as
Stat1181 Sections 1&2
Summer 2014
Assignment #1 (34 marks) (Due May 22)
1
[5 marks] An article in a newspaper read, 43% of all post-secondary students in
B.C. have studied at least one statistics course in their post-secondary studies.
After you had asked
Mori Akihiko 1
Akihiko Mori
Li, Eugene
STATS1181-001
05 June, 2014
Assignment #2
1) Frequency Distribution
a) Frequency Distribution
Amount of 20 Companies for each Industry (Fortune, April 17, 2000)
Aerospace
Beverage
Chemicals
Electronics
Food
Amount of
Stat 1181 Term Test #2b (Answer Key)
1. (a) Graph: Block diagram
Reason: Two variables are categorical variables
(b) 53*53/116=24.22 (EASY!)
(c) If there is no relationship between employees commuting times and their stress levels, we
expect to have 24.22
Stat 1181
Summer 2014
Stat 1181
Assignment #4 (Answer Key) (Total 21 marks)
1.
#12.25, p.525 [6]
We test: H0: For all the people who turn to for news, there is no relationship between the
age group and the media
Ha: For all the people who turn to for news
COMBINATORICS:
How to Count without Really Counting
In solving problems in probability, it is important that we know what the sample space for the chance
experiment looks like, i.e., what an outcome is and how many outcomes there are. The subject of
combi
Langara College Stat 1181/Darkoh Section 5 Descriptive and Elementary Inferential Statistics Fall 2010 Course Outline
Instructor: E. Darkoh Office: Room B019i; Tel: 604 323-5734; email: edarkoh@langara.bc.ca Office Hrs: T&R; 0930-1125, or by appointment o
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 9
Hypothesis Testing (Tests of Significance)
Developing Null and Alternative Hypotheses
and Type I and Type II Errors
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 1b
Sampling and Bias
Statistical Inference
Terminology used in Sampling
Types of Surveys and Sampling Methods
Survey
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 1a
Introduction
Applications
Cases, Labels, Variables, Data (1.1)
Data Collection (p.150)
Population vs Sample (p.153
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 2a
Describing Univariate Data: with Graphs
Summarizing Categorical Data
Summarizing Quantitative Data
(1.1)
2
Summari
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared
by Eugene Li
1
Topic 2b
Describing Univariate Data: with
Numbers
Measures of Location
Measures of Variability (Spread)
Measures of Relativ
Stat 1181
Summer 2014
Assignment #2 (Answer Key) (Total 50 marks)
1.
[6 marks]
(a & b)
Industry
Beverage
Chemicals
Electronics
Food
Aerospace
# of companies
2
3
6
7
2
20
Totals:
Percent of companies
10
15
30
35
10
100
# o f C o m p a n ie s
(c)
Barchart f
Stat 1181 Notes: M19 Central Limit Theorem and Applications
M19.LO1: Understand the basic meaning of the Central Limit Theorem; know how its application is related
to the assumptions we have for confidence intervals and hypothesis testing.
M19.LO2: Do pro
MoriAkihiko 1
Akihiko Mori (100201954)
Instructor: Li, Eugene
STATS1181-001
10 July, 2014
Assignment#4
Categorical Analysis
1.
Media
AgeGroup - 36
AgeGroup 36-50
AgeGroup 50+
Hypothesis Test
Local TV
119
133
73
102
127
Null Hypo:
Radio
75
For all
Local n
Stat 2225
Summer 2014
Assignment #3 (due June 26) (Total 65 marks)
(Note: Youre allowed to use SGC to do all the calculations if you wish. If you do in this way, you MUST include
the SGC result. For any ANOVA question, including an ANOVA table is a MUST!)
MoriAkihiko1
Akihiko Mori (100201954)
Instructor: Li, Eugene
STATS1181-001
10 July, 2014
Assignment#4
Categorical Analysis
1.
Media
- 36
36-50
50+
Hypothesis Test
Local TV
Set Hypothesis
Null Hypo: For all people, there is no
relationship between their a
MoriAkihiko 1
Akihiko Mori
Instructor: Li, Eugene
English 1100-001
26 June, 2014
Assignment#3
1. The quantitative bivariables analysis: the annual sales of stores and its size
(a) Scatter Plot and Interpretation
Interpretation
i.
Plot of Annual Sales vs S
Mori Akihiko 1
Akihiko Mori
Instructor: Li, Eugene
STATS1181-001
Chapter 1 exercises
1) SRS and Stratified Sampling
a) The first method is better than the second method
because the first method contain less bias, collecting students randomly.
b) Since the
Stat1181
Summer 2014
Assignment #2
(Due June 4(Sec2) / 5(Sec1)
Total 50 marks
All data files can be found in D2L. For some questions, you can either do it by hand or
use Statgraphics. If do by Statgraphics, you must include the printout of the result. Not
Stat 1181
Assignment #3
Summer 2014
Total is 44 marks
(a)
(7 marks, 1 for each interpretation of features and 2 for the graph)
Plot of Sales vs Size
(X 1000)
15
Sales
12
9
6
3
0
0
2
4
Size
6
8
(X 1000)
Direction: The bigger the store size, the more the an
Stat 1181
Summer 2014
Stat 1181
Assignment #4 (Answer Key) (Total 21 marks)
1.
#12.25, p.525 [6]
We test: H0: For all the people who turn to for news, there is no relationship between the age group and the media
Ha: For all the people who turn to for news
Mori Akihiko 1
Akihiko Mori (100201954)
Instructor: Li, Eugene
STATS1181-001
22 May, 2014
Assignment#1
1) The Sampling and Bias
a) The population: post-secondary school students in B.C.
b) The sample: 1210 randomly selected post-secondary students in both
Stat1181 Sections 1&2
Assignment #1 (34 marks) (Due May 22)
2014 Summer 1
1. [5 marks] An article in a newspaper read, 43% of all post-secondary students in B.C. have
studied at least one statistics course in their post-secondary studies. After you had as
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 3a
Bivariate Data Analysis (Quantitative)
Two-way Table (Crosstabultion) & Scatter Plot
(2.1, omit p. 86-87)
Measures
Stat 1181 Notes: M16 Confidence Intervals or Interval Estimation
M16.LO1: Understand the reason of using interval estimation over point estimation.
M16.LO2: Understand the concept of certainty, accuracy and precision in relation to estimation and
confiden
Stat 1181 Notes: M15 Sampling Distribution of Statistics
M15.LO1: Understand the heuristic derivation and purpose of sampling distribution of statistics;
understand the difference between the probability distribution of random variables and sampling
distr
Stat 1181 Notes: M11 Probability (Part I)
M11.LO1: Understand and use the proper probability terminology; define events properly (throughout the
entire module).
M11.LO2: Understand and apply the basic probability rules.
M11.LO3: Understand and apply the f
Stat 1181 Notes: M18 Hypothesis Testing or Tests of Significance (Part II)
M18.LO1: Apply the complete hypothesis testing procedure to two-tailed test, besides one-tailed test.
M18.LO2: Understand the meaning and the application of Type I error and Type I
Stat 1181 Notes: M17 Hypothesis Testing or Tests of Significance (Part I)
M17.LO1: Understand the difference between interval estimation and hypothesis testing; apply one of them
in a specific situation.
M17.LO2: Set up the alternative hypothesis, for bot