E370, Fall, 2015
Class Activities Week of 9/14/2015 ANSWERS
pg. 1
Name_SID_Lab Section #_ Please read and
follow the instructions in order to get the most credit.
1.
A data set contains several variab
E370, Fall, 2015
Class Activities Week of 09/21/2015 ANSWERS
Name_SID_Lab Section #_
Graders please consider rounding error before deducting points.
1.
A lab orders 100 rats a week for each of the 52
E370, Fall, 2015
pg. 1
Class Activities Week of 9/28/2015 ANSWERS
Name_SID_Lab Section #_
1.
Determine if any of the following scenarios are legitimate binomial situations. If not, why not?
A. Car sec
Exam Three Information
Date, Time,
Location
Monday, March 25, 2013
8:00 to 9:30 PM
DSS Students begin exam at 7:30 PM.
The exam will begin promptly at 8:00 PM. If you are late, you will not
receive ad
1. John is a brand manager for Coors Light. John decided to drop the price for Coors Light from $12/case in January
2009 to $10/case in February 2009. He examined the data in early March and found Feb
E370, Fall, 2015
Class Activities Week of 8/24/2015 ANSWERS
pg 1
Name_SID_Lab Section #_
1.
Indicate the type of statistical activity described, either Descriptive (D) or Inferential (I).
A.
Examine t
Summer I 2011 E370 Section 5314
Answer Key to Homework Assignment #3
1.
a.
b.
c.
d.
e.
f.
g.
h.
X-bar~? (2%, SQRT(.33/10)=.1817)
Y-bar~N(680, SQRT(6400/10)=25.2982)
Because sample size > 30,
X-bar~app
Lesson5MeasureofVariation
Jan23
Outline
Measures of central tendency fail to tell the whole
story about the distribution. How much of the
observations spread out around the mean value?
q
q
Measures of
E370, Fall, 2015
pg. 1
Class Activities Week of 10/12/2015 ANSWERS
Name_SID_Lab Section #_
1.
List 3 reasons why samples and their statistics are often used in statistical practice rather than populat
E370, Fall, 2015
pg. 1
Class Activities Week of 8/31/2015 ANSWERS
Name_SID_Lab Section #_
1.
The table to the right contains observations for the length in years all British monarchs reigned. An Excel
Assessment: Lesson 1 Drilling Past Questions
Question 1:
Type:
Correct
answer(s):
Which of the following is an example of statistical inference?
A subset of statistics composed of methods that use des
Assessment: Lesson 4 Drilling Past Questions
Question
1:
Type:
Correct
answer(s
):
It can accurately be said of the mean that
Multiple Choice
the mean is always the 50th percentile.
depending on data,
Assessment: Lesson 18 Drilling Past Questions
Question 1:
The 2009 National Survey of Student Engagement (NSSE) reports that 73% of first-generation
college students plan to pursue graduate school, wh
A survey about living expense of IU students was conducted to estimate college education cost.
Expenditures vary across students. In 2012, the average monthly living expense was $945 and the (populati
1. Two types of statistics:
a. Descriptive Statistics:
a.i. summarize a fixed data set, using tools to make the information in the set
more easily understood (describing a data set)
a.ii. collecting,
3. The grades of all the E370 students are normally distributed with mean 70 and an
unknown standard deviation. Suppose we randomly draw 25 students from this
population and compute the mean grade of
E370 Homework Assignment (IV&V)_Spring 2013
Due date: April/17/2013 (Wed)
Instructor: Shu-Ling Wang
Requirement Please hand in your GROUP work at the beginning of the class. You need to
write down all
Sample Exam E, pg 1
A random sample of 54 Indiana residents revealed 36 who planned to make at least one summer
trip next year. For those Indiana residents who plan to travel at least once in the summ
E370 Homework Assignment (II)_Spring 2013
Due date: Feb/13/2013
Instructor: Shu-Ling Wang
1. IQR (12 pts in total; 4 pts each for Q1 and Q3, 4 pts for the range.)
The following stem and leaf diagram r
E370 Homework Assignment (I)_Spring 2013
Due date: Jan/28/2013
Instructor: Shu-Ling Wang
Requirement There are FIVE questions in this assignment. You need to hand in your
INDIVIDUAL paper work at the
This data set lists raw score on an economics department microeconomics final exam based on a sample of 99 students.
SAT verbal and Math are also listed. Using this data set, answer the following ques
Research question:
Does gender (male or female) have any effect on the amount of earnings one makes?
Motivation:
To be able to conclude what each gender (male or female) needs more before entering the
Brief Summary & Outline:
In the remainder of this research paper, we evaluate the relationships between earnings,
education and experience for both males and females, in order to determine the optimal
E370 Homework Assignment (III)_Spring 2013
Due date: Mar/06/2013
Instructor: Shu-Ling Wang
Requirement There are 20 questions in this assignment. Please hand in your
INDIVIDUAL paper work at the begin
E 370 Fall 2004
In-Lab Examination One
Statement of Academic Integrity:
I swear that I have neither given nor received assistance on this exam and that I will not
discuss this exam until all sections