MATH 2565 - Winter 2016
Assignment 1
1. A consulting company conducted a survey of U.S. residents for the U.S.
Department of Commerce Bureau of Economic Analysis. Each resident was
asked to indicate w
MATH 2565 - Winter 2016
Assignment 2, Due Feb 9
Question 1: Customers at a Safeway grocery store in Scottsdale, Arisona
can pay for purchases with cash, an ATM card, or a credit card. Fifty-five
perce
MATH 2565 - Winter 2016
Assignment 2, Due Feb 9
Question 1: Customers at a Safeway grocery store in Scottsdale, Arisona
can pay for purchases with cash, an ATM card, or a credit card. Fifty-five
perce
MATH 2565 - Winter 2016
Assignment 1
(Due Date: Jan, 21, 2016)
1. A consulting company conducted a survey of U.S. residents for the U.S.
Department of Commerce Bureau of Economic Analysis. Each reside
1.
a.
Social Issue
Frequenc
y
Housing
Transportation
Health Care
Education
Food
Other
TOTAL
245
112
153
71
133
306
1020
Relative
Frequenc
y
0.240196
0.109803
0.150000
0.069607
0.103039
0.300000
1.0000
Question 1
Research concerning purchasing habits at the grocery store suggests that impulse buys
make up approximately 60% of all purchases. Suppose 100 customers are selected at random.
(a) Find the
Question 1: Suppose that 5% of all people ling their income tax forms seek deductions
that they know are illegal (that is, they cheat). On the other hand, 2% of all people incorrectly list deductions
MATH 2565 3.0 2014 Fall
Introduction to Applied Statistics
Instructor: Yuejiao Cindy Fu
Phone:
736-2100 ext 33772
Oce:
Oce hour:
N633 Ross
Mon 11:30-12:30 N633
Course home page: https:/moodle.yorku.ca
Question 1: In a recent report by CallOften, 38% of mobile phone users are their customers. The monthly charges of CallOften customers are normally distributed with mean
$65, and standard deviation $8
Chapter 17 Probability Models83
PPS6 (Solution)
Problem 17.17: Coins and intuition.
a) Intuitively, we expect 50 heads.
b) E(heads) np 100(0.5) 50 heads.
Problem17.19: Lefties. These may be considered
MATH 2565 (A) TEST#1 FALL 2017
%
YORK UNIVERSITY
FACULTY OF SCIENCE
DEPARTMENT OF MATHEMATICS AND STATISTICS
INTRODUCTION TO APPLIED STATISTICS
TEST #1
OCTOBER 30, 2017
Instructor: Dr. Igor Poliakov
S
Instructors Solutions Manual for
Introductory Statistics: A Problem Solving Approach
Second Edition
Stephen Kokoska
Bloomsburg University
1
Chapter 3: Numerical Summary Measures
Section 3.1: Measures
MATH 2565 Sample Final Exam Questions
Page 1 of 23
Name (PRINT)_
Student Number_
Signature_
MATH 2565 3.0 Introduction to AppliedStatistics
Sample Final Exam Questions
Duration: 2 hours
MATH 2565 Samp
MATH 2565
Assignment 2
(Due Date: Feb 14, 2017)
Question 1: A survey of students in a large Introductory Statistics class asked about their
birth order (1 = oldest or only child; 2 = others) and which
7.1 Statistics, parameters, and sampling distributions
FINDING THE SAMPLING DISTRIBUTION
Keep in mind they want sample median so find median.
5 samples. 3 are chosen. (do permutation to find total out
9.1 The Parts of a Hypothesis Test and Choosing the
Alternative Hypothesis
Alternative has to be different than the null answer.
Since the question cannot be thinner or thicker then it uses not-equal.
Name: _ Date: _
1. Which option would serve as an intuitive estimate of the parameter
A)
B)
C)
D)
?
2. Which option would serve as an intuitive estimate of the parameter
A)
B)
C)
D)
?
3. Which option
Name: _ Date: _
1. The _ is the claim that is assumed to be true, believed to be true, or is simply the
statement to be tested.
A) null hypothesis
B) alternative hypothesis
C) test statistic
D) true h
Name: _ Date: _
1. Select the CORRECT assumptions for the one-way ANOVA.
A) The sample size is large (n > 30), and the populations are normal.
B) Samples are selected randomly and independently from k
Name: _ Date: _
1. The _ is the claim that is assumed to be true, believed to be true, or is simply the
statement to be tested.
A) null hypothesis
B) alternative hypothesis
C) test statistic
D) true h
Name: _ Date: _
1. A single number computed from a sample that serves as a guess for a parameter is called
a(n):
A) point estimate.
B) approximate estimate.
C) confidence estimate.
D) confidence inter
Name: _ Date: _
1. In 2004, the San Francisco police began using DNA evidence in unsolved homicides.
The crime lab found evidence that suggested John Puckett was a DNA match for a crime
committed thre
Introductory Statistics:
A Problem-Solving
Approach
by Stephen Kokoska
Chapter 0
Why Study Statistics?
Copyright 2015 by W. H. Freeman and Company. All rights
reserved.
1
Statistical Inference
Procedu
Name: _ Date: _
1. As used in the text, an experiment is defined as an activity in which:
A) there is one outcome that is certain to occur.
B) the uncertainty of the outcome is so great that we cannot
Name: _ Date: _
1.
Above is a pie chart summarizing the ages of a kindergarten class (4-, 5-, 6-, and 7-yearolds). What is the relative frequency of four-year-olds in this class?
A) 3
B) 4
C) 0.143
D)
Name: _ Date: _
1. A density curve is a:
A) mathematical device that adjusts (equalizes) probability across the range of data.
B) smooth curve that visually displays the distribution of probability fo
Name: _ Date: _
1. A function that assigns a unique numerical value to each outcome in a sample space is
known as a(n):
A) unique number generator (UNG).
B) outcome assigning function (OAF).
C) random