1 of 74
Term Definition
Which of the following A
statements is true?
A) Opinion about death penalty
(favor or oppose) is a
categorical variable.
B) Number of coins in
someone's pocket is a
categorical variable.
C) Number of text messages a
person sends in a day is a
continuous variable.
D) Body weight (in pounds) is an
ordinal variable.
Give this one a try later!
True False
, 2 of 74
Term Definition
You are given that the margin of
C
error for n=1000 is 3%, and for
n=100 is 10%. Based on this
information, which of the
following statements is false?
A) The margin of error for a
sample size of 750 is between
3% and 10%.
B) The margin of error for a
sample size of 50 is smaller than
10%.
C) The margin of error for a
sample size of 1800 is smaller
than 3%.
D) The margin of error for a
sample size of 750 is larger than
3%.
Give this one a try later!
True False
Correct definition
B
3 of 74
,Term Definition
Weights of females have D
approximately a normal
distribution with mean 135 lbs.
and standard deviation 20 lbs.
Allison weighs 155 lbs. What
proportion of females weigh
more than Allison?
A) 0.31
B) 0.69
C) 0.50
D) 0.16
E) 0.25
Give this one a try later!
True False
4 of 74
Term Definition
Find the median for the set of C
measurements 2, 9, 11, 5, 6, 27.
A) 8
B) 10
C) 7.5
D) 9
E) 6
Give this one a try later!
, True False
5 of 74
Term Definition
In the 2010 census of the United B
States, it was determined that
the average household size was
2.25 persons per household.
The number 2.25 given here is a
A) sample statistic
B) population parameter
Give this one a try later!
True False
6 of 74
Term Definition
Suppose that a researcher is
E
designing a survey to estimate
the proportion of adults in your
state who oppose a proposed
law that requires all automobile
passengers to wear a seat belt.
What would be the approximate
margin of error if the researcher
randomly sampled 240 adults?
Term Definition
Which of the following A
statements is true?
A) Opinion about death penalty
(favor or oppose) is a
categorical variable.
B) Number of coins in
someone's pocket is a
categorical variable.
C) Number of text messages a
person sends in a day is a
continuous variable.
D) Body weight (in pounds) is an
ordinal variable.
Give this one a try later!
True False
, 2 of 74
Term Definition
You are given that the margin of
C
error for n=1000 is 3%, and for
n=100 is 10%. Based on this
information, which of the
following statements is false?
A) The margin of error for a
sample size of 750 is between
3% and 10%.
B) The margin of error for a
sample size of 50 is smaller than
10%.
C) The margin of error for a
sample size of 1800 is smaller
than 3%.
D) The margin of error for a
sample size of 750 is larger than
3%.
Give this one a try later!
True False
Correct definition
B
3 of 74
,Term Definition
Weights of females have D
approximately a normal
distribution with mean 135 lbs.
and standard deviation 20 lbs.
Allison weighs 155 lbs. What
proportion of females weigh
more than Allison?
A) 0.31
B) 0.69
C) 0.50
D) 0.16
E) 0.25
Give this one a try later!
True False
4 of 74
Term Definition
Find the median for the set of C
measurements 2, 9, 11, 5, 6, 27.
A) 8
B) 10
C) 7.5
D) 9
E) 6
Give this one a try later!
, True False
5 of 74
Term Definition
In the 2010 census of the United B
States, it was determined that
the average household size was
2.25 persons per household.
The number 2.25 given here is a
A) sample statistic
B) population parameter
Give this one a try later!
True False
6 of 74
Term Definition
Suppose that a researcher is
E
designing a survey to estimate
the proportion of adults in your
state who oppose a proposed
law that requires all automobile
passengers to wear a seat belt.
What would be the approximate
margin of error if the researcher
randomly sampled 240 adults?
