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
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
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
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
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
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
Stat 1181 (004) Course Outline Fall 2008
La
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Fa a
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Statistics 1181 (004)
Descriptive and Elementary Inferential Statistics
Fall 2008 Course Outline
Instructor: Michael Lo
E-mail: [email protected]
Office: B019j
Phone
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
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
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: [email protected] Office Hrs: T&R; 0930-1125, or by appointment o
CHI-SQUARE ANALYSIS:
Exploring association with qualitative variables
In this section, we take up qualitative data analysis. This discussion is intended to expand on the
treatment of the material in the text.
Just as the correlation coefficient can often
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
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 5
Discrete Random Variables
Random Variables
Discrete Probability Distributions
Expected Value (mean) and Variance
La
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 4
Probability
Random Phenomenon, the Sample Space, and
Counting Rules
Approaches of Building the Foundation
Event, Pr
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 7
Sampling Distributions &
The Central Limit Theorem
Point Estimation
Introduction to Sampling Distributions
Sampling
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 6
Continuous Random Variables
The Continuous Random Variable
Continuous Probability Distribution (Probability
Density
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 8
Confidence Intervals
Introduction
Interval Estimation of a Population Mean:
Large-Sample Case
Determining the Sampl
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 3b
Bivariate Data Analysis (Categorical)
Two-Way Table (Crosstabulation) (2.5)
Chi-Square Test of a Independence (9.1
SAMPLING PROCEDURES AND BIAS:
Ways and Means of Selecting a Good Sample
Note: This section reorganizes and expands on the material presented in the text. Exercises
for further study are provided at the end of this section.
Basic Idea in Sampling: Many peo
CORRELATION ANALYSIS:
Determining and Interpreting a Sample Correlation Coefficient
How large in absolute value must a sample correlation coefficient be in order to conclude that a linear
relationship exists between the independent variable, X, and the de
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
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
Stat 1181 Notes Hypothesis Testing or Tests of Significance
Review of Notation/Symbols
Name
X
s
Sample Average/Mean
Population Average/Mean
Sample Standard Deviation
Population Standard Deviation
Description
The average/mean of a sample
Statistic
The aver
Stat 1181 Notes Inference for Proportions (or Inference for One Categorical Variable)
Overview
This unit is a collection of all materials covered in the previous three units (Sampling Distribution,
Confidence Intervals and Hypothesis Testing).
The only
Stat 1181 Notes Confidence Intervals or Interval Estimation
Review of Notation/Symbols
Name
X
s
Sample Average/Mean
Population Average/Mean
Sample Standard Deviation
Population Standard Deviation
Description
The average/mean of a sample
Statistic
The aver
Stat 1181 Notes Sampling Distributions and Central Limit Theorem
Sampling Distribution of a Statistic
In this course, sampling distribution of a statistic has three key parts: (1) the shape of the statistic, (2)
the expected value of the statistic, and (
Stat 1181 Notes Introduction to Statistics
What we do in (the discipline of) Statistics?
Statistics starts with an idea or a question like I wonder if my hypothesis was right, or I wonder if
these two things were related etc.
We will not need statistics
Stat 1181 Notes Probability
Probability and Statistics
You probably have heard that these two topics always go together.
In fact, the use of statistics would be very limited without probability, which is about what we have
learned so far in this course