M ATH114 Fall 2011
EXAM I .
P age 1
T he following multiple choice questions are worth 5 points each.
1.
Determine the appropriate level o f measurement: state o f residence, size o f c ar
(e.g.,
size, full size, etc.), temperature o n campus today in F,
ANSWERS TO SELECTED EXERCISES
Chapter 1
1.1 1.2 1.3 Americans b, c, d. Answers will vary university students b. 1,746 82% like to snack at home d. Multiple answers employed American adults U.S. Labor Department number of cashiers surveyed in 1996; me
Lab 17:7 iLinear, Quadratic, and Seasonal Models
Textbook reference: 13.7. 13.8
The quarterly numbers of housing starts (in thousands of dwellings) in the United States
from 2001 through 2005 are shown below. The data can also be found on your data CD
Lab 10: Simple Linear Regression. Part 2
Textbook reference; chapter 10
The use of SAT scores as admissions criteria in higher education has been widely
discussed. Often. the issue is whether these scores have predictive value for an
applicants future pe
Lab 9: Simple Linear Regression, Part 1
Textbook reference: 10.1, 10.2
You are employed in the marketing department of a large nationwide newspaper chain.
The parent company is interested in investigating the feasibility of beginning a Sunday
edition fo
Lab Categorical Data and Chi-Square Tests
Textbook reference: 9.2, 9.3
in 1912 the luxury liner Titanic, on its rst voyage across the Atlantic, struck an iceberg
and sank. Some passengers got off the ship in lifeboats, but many died. Think of the
Titan
MATH202
Lab 2: Comparing Two Population Variances
Textbook reference: 7.6
Refer to the rent data in the previous lab. One of the assumptions required for the
validity of the pooled-variance t-test is that the population variances are equal (12 = 22).
Do t
University of Delaware: Fall 2016
MATH114 -15
QUIZ 2
Sections: 2.4, 2.5, 3.1, 4.1
NAME: _
DATE:_
Directions: Please
Turn off and put away any cell phones, ipods etc.
Wear any baseball caps backwards or remove them.
Close any and all bags/backpacks/etc.
Sh
MATH202
Lab 1: Comparing Two Population Means - Independent Samples
Textbook reference: 7 .2
Tom wants to compare the cost of one- and two-bedroom apartments in his area. He
collects data for a random sample of 10 advertisements of each type. Here are the
11
T he following 15 multiple choice questions are worth 5 points each.
1.
Suppose 13% o f the area under the standard normal curve lies to the right o f z. Which o f
the following is correct s positive o r negative?
a.
b.
c.
d.
2.
z is negative
z IS zero
Answers Key
M114 Spring 2012 E xam II
Version: One D ot
Colors: Pink o r Green
M114 Spring 2012 E xam II
Version: two dots
Colors: Yello w o r B lue
1.
E
2.
A
3.
c
4.
D
5.
A
c
6.
B
7.
c
7.
E
8.
D
8.
A
9.
B
9.
D
10.
c
10.
A
11.
D
11.
c
12.
B
12.
c
13.
c
13
II
The following 15 multiple choice questions are worth 5 points each.
1.
Which o fthe following graphs does not have an inverse function?
d.
a.
y
1.
~
b.
e.
c.
-3 -2
2.
Find the inverse o f the function: f (x) = 8 -3x
1
a.
3 x-8
c.
8 -3x
b.
3.
8 -x
-3
d.
. l \
;
!l
:
The following 22 multiple choice questions are worth 6 points each.
1.
To determine the proportion o f students at a university who favor the hiring o f a
new dean, every tenth student who leaves the student union is surveyed. W hich
term b e
Lab 5: One-Way Analysis of Variance (ANOVA)
Textbook reference: 8.1 8.3
Detergent manufacturers frequently make claims about the effectiveness of their
products. A consumer-protection service decided to test the ve bestselling brands of
detergent. each
MATH114: Alg Section 4.5 Solving Equations:
DATE:_
Solutions to In-Class Exercises:
1) Multiple Steps:
t /2
log 5 5
Take log base 5 on both sides:
Solve for t and use Change of base :
=log 5 0.20
t
=log 5 0.20
2
t=2 log 5 0.20
Solve for t:
t=2
and
ln 0.20