What is the population in the study

QUESTION

Week 1 Quiz
1.
The
Gallup Organization contacts 1709 adult men who are 40 to 60 yrs of age and
live in the United States and asks whether or not they had seen their family
doctor within the past 6 months.
What
is the population in the study? Choose from the answers from below:
a)
Adult
men who are 40 to 60 yrs of age
b)
Adult
men who are 40 to 40 to 60 yrs of age and have seen their family doctor
c)
Adult
men who are 40 to 60 yrs of age and live in the United States
d)
Adult
men who are 40 to 60 yrs of age and live in the United States and have seen
their family doctor

What
is the sample in the study? Choose from the answers from below:
a)
The
1709 adult men who are 40 to 60 yrs of age and live in the United States
b)
Adult
men who are 40 to 60 yrs of age
c)
Adult
men who are 40 to 60 of age and live in the United States
d)
The
1709 adult men who are 40 to 60 yrs of age and live in the United States and
have seen their family doctor

2.
What
is 94% of 200?
3.
Identify
the type of observational study (cross-sectional, retrospective, or prospective)
described below.
A
research company uses a device to record the viewing habits of about 15,000
households, and the data collected over the past 2 yrs will be used to
determine whether the proportion of households tuned to a particular sports program
increased. Which type of observational
study is described in the problem statement?
Choose from the answers below:
a)
Retrospective
study
b)
Prospective
study
c)
Cross-sectional
study
4.
Listed
below are the durations (in hours) of a simple random sample of all flights of
a space shuttle program. Find the range,
variance, and standard deviation for the sample data. Is the lowest duration time usual? Why or why not.
75 98
234 191 161
264 190 374
254 231 390
330 227 246 0
SHOW WORK
a)
The
range of the sample data is _______ hours.
(Enter integer or decimal)
b)
The
variance of the sample data is _______.
(Enter integer or decimal)
c)
The
standard deviation of the sample data is _______. (Enter integer or decimal)
Is
the lowest duration time usual? Why or
why not? Choose
from the answers below:
a)
No,
because it is within two standard deviations of the mean
b)
No
because the sample is random
c)
Yes,
because the lowest value in a data set is usually an outlier
d)
Yes,
because it is more than two standard deviations below the mean
5.
Which
is relatively better: a score of 79 on a
psychology test or a score of 38 on an economics test? Scores on the psychology test have a mean of
89 and a standard deviation of 14.
Scores on the economics test have a mean of 51 and a standard deviation
of 10. Choose
the correct answer from the choices below:
a)
The
psychology test score is relatively better because its z score is less than the
z score for the economics test score
b)
The
economics test score is relatively better because its z score is less than the
z score for the psychology test score
c)
The
economics test score is relatively better because its z score is greater than
the z score for the psychology test score
d)
The
psychology test score is relatively better because its z score is greater than
the z score for the economics test score
6.
Find
the third quartile Q3 of the list of 24 sorted values shown below:
SHOW WORK
30 30
34 39 41
42 42 42
49 49 50
50 51 51
54 55 57
52 66 67
73 73 77 79

The
third quartile Q3 is _______. (Enter
integer or decimal)

ANSWER

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