W W I'm". Box 2.2 Describing the Void Spacecont'd .,. .
Conning units (aquitards) are typically composed of shale or_ clay: m 3? '
permeability. However, it is not uncommon for conning: units to MW '
Homework 3, Due by 6:00PM on September 20, 2016
1. This problem will give you practice in writing finite difference (FD) approximations
a) Write a FD approximation for the 2D confined aquifer
+ =
(1
Homework 2, Due by 6:00PM on September 13, 2016
The geologic map in the following figure shows a river valley filled with 30 m of fluvial sand
and gravel. The fluvial deposits are underlain by 200 m o
A raw score
distribution which has
a moderate negative
skew will result in a
sampling distribution
of the mean for N = 42
that is _.
also negatively
distributed
normally
b.
distributed
positively
c.
s
Which of the
following are
examples of mutually
exclusive events?
rain and a
cloudless sky
snow and a
b. temperature
of 10 Celsius
walking and
c. running at the
same time
all of the
d.
above
e. a and
1 A statistic is
to a sample as
a parameter is
to a
population.
True
False
status: incorrect
(0.0)
correct: true
your answer:
false
feedback:
Incorrect.
2 Observational
studies
involve the
manipulatio
1 The 95% confidence interval of the mean for
= 13.0, s = 1.6, and N = 21 is _.
a.
b.
c.
d.
12.01 to 13.99
12.27 to 13.73
11.05 to 15.05
12.95 to 14.95
status: incorrect (0.0)
correct: b
your answer:
If the independent variable has a real effect, the probability of rejecting H0 is _.
a.
b.
c.
d.
power
1 - power
alpha
beta
status: incorrect (0.0)
correct: a
your answer: d
feedback: Incorrect.
2 One
Which method of knowing is used in the following example? An individual accepts as true that
black holes exist because 10 physics Nobel laureates assert such is the case.
a.
b.
c.
method of authority
When individual scores are combined into groups, _.
a.
information is lost
b.
data is added
c. a meaningful visual display can result depending on the interval width
d.
a and c
status: correct (1.0)
c
Given the following subjects and scores, which symbol would be used to represent the score of
3?
a.
b.
c.
d.
X8
X4
X3
X2
status: correct (1.0)
correct: b
your answer: b
feedback: Correct.
2 We have co
Chapter 3
Frequency Distributions
CHAPTER OUTLINE
Constructing Frequency Distributions
A list of rank ordered scores and their frequency of occurrence in tabular form is called a
frequency distribut
1 If a distribution of raw scores is negatively skewed, transforming the raw scores into z scores
will result in a _ distribution.
a.
b.
c.
d.
normal
bell-shaped
positively skewed
negatively skewed
st
CHAPTER OUTLINE
1. Study Hints for the Student
1. Review basic algebra but don't be afraid that the mathematics will be too hard.
2. Become very familiar with the notations in the book.
3. Don't fall
The mean is _ sensitive to extreme scores than the median.
a.
more
b.
less
c.
equally
Can't say without the scores.
d.
status: correct (1.0)
correct: a
your answer: a
feedback: Correct.
2
is called _.
Question 1
1 / 1 pts
Exhibit 1-1
Let's assume you are conducting an experiment to determine the effect of a new drug on the
incidence of epileptic seizures. You select 20 epileptics from the 150 epile
If N is small, an extreme score _.
a. won't affect robt unduly
b. should be thrown out
c. might have a large effect on robt
d. has no effect on the value of robt
status: correct (1.0)
correct: c
your
Chapter 1
Statistics & Scientific Method
CHAPTER OUTLINE
1. Methods of Acquiring Knowledge
1. Authority. One accepts information as being true because someone who is supposed to know
tells you somethi
Achievement Gaps from K-PREP and CATS KCCT,
Elementary School Reading, by Grade Level
l GAP, K-PREP
READ PCT
PROFICIENT
DIS11NGUISH
ED 2012
I GAP, KCCT
READ PCT
PROFICIENT
DIS11NGUISH
ED 2011
a.
(D
Change In mean sea level [mm]
Global mean sea level from TOPEXlPoseidon, Jason-1, and Jason-2
global mean in level
national alqnaluunmmd
trend: 2.5 :l: 0.1 W!