Question
In: Statistics and Probability
In this study patients were recruited from 3 different clinical sites. Use the following data to...
In this study patients were recruited from 3 different clinical sites. Use the following data to test if there is a difference in the proportions of hypertensive patients across clinical sites.
(old fashioned step by step process, Excel is okay but no electronic computing like ANOVA, please)
|
Site 1 |
Site 2 |
Site 3 |
|
|
Hypertensive |
10 |
14 |
12 |
|
Not Hypertensive |
68 |
56 |
40 |
Solutions
orchestra answered 2 years agoRelated Solutions
The following data were obtained from a repeated-measures study comparing 3 treatment conditions. Use a repeated-measures...
The following data were obtained from a repeated-measures study
comparing 3 treatment conditions. Use a repeated-measures ANOVA
with a=.05 to determine whether there are significant mean
differences among the three treatments (do all 4 steps of
conducting a hypothesis test!!):
Person
Treatment 1
Treatment 2
Treatment 3
Person Totals
A
0
2
4
P=6
N=15
B
0
3
6
P=9
G=60
C
3
7
8
P=18
D
0
7
5
P=12
E
2
6
7
P=15
M=1
M=5
M=6
T=5...
The following table was derived from a study of HIV patients, and the data reflect the...
The following table was derived from a study of HIV patients,
and the data reflect the number of subjects classified by their
primary HIV risk factor and gender. Test if there is a relationship
between HIV risk factor and gender using a 5% level of
significance:
Gender
Total
HIV Risk Factor
Male
Female
IV drug user
24
40
64
Homosexual
32
18
50
Other
15
25
40
71
83
154
What type of chi-square test will you use (goodness of...
Ten participants were recruited for a study on the effect of target size on a psychomotor...
Ten participants were recruited for a study on the effect of
target size on a psychomotor task. The researcher predicted that
larger targets would result in faster psychomotor response. Five
participants were randomly assigned to group 1 (large target size)
and the other five were randomly assigned to group 2 (small target
size). Data are below. Group 1: 9, 6,8,8,9 Group 2: 6,7,7,9,8 What
is the obtained value of the most appropriate statistic? What is
the critical value for this...
1. The following data were obtained from 3 separate enzyme kinetic experiments using 3 different substrates...
1. The following data were obtained from 3 separate
enzyme kinetic experiments using 3 different substrates S1, S2 and
S3 forming products P1, P2 and P3 respectively. The amount of
enzyme in each reaction is 1 µM. Find out the rate and graph the
data using a Michaelis-Menton and Lineweaver-Burk plots and
determine the values for Km, Vmax, Kcat, and Kcat/Km. Which among
the 3 substrate is best substrate for this enzyme and why? (4
points)
[S] (mM) [P1] (mM)...
The following data were obtained in a study using three separate samples to compare three different...
The following data were obtained in a study using three separate
samples to compare three different treatments. Conduct an analysis
of variance with α=0.05α=0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments.
Treatment A
Treatment B
Treatment C
6
4
11
8
6
9
7
6
9
7
4
7
F-ratio =
p-value =
Conclusion:
These data do not provide evidence of a difference between the
treatments
There is a significant...
The following data were obtained in a study using three separate samples to compare three different...
The following data were obtained in a study using three separate
samples to compare three different treatments. Conduct an analysis
of variance with α=0.05α=0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments.
Treatment A
Treatment B
Treatment C
22
21
22
23
19
24
21
19
24
22
21
26
F-ratio =
p-value =
Conclusion:
There is a significant difference between treatments
These data do not provide evidence of a difference...
The following data were obtained in a study using three separate samples to compare three different...
The following data were obtained in a study using three separate
samples to compare three different treatments. Conduct an analysis
of variance with α=0.05α=0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments.
Treatment A
Treatment B
Treatment C
14
10
13
13
12
15
12
12
17
13
10
15
F-ratio =
p-value =
Conclusion:
These data do not provide evidence of a difference between the
treatments
There is a significant...
The following data were obtained in a study using three separate samples to compare three different...
The following data were obtained in a study using three separate
samples to compare three different treatments. Conduct an analysis
of variance with α=0.05 to determine whether these data are
sufficient to conclude that there are significant differences
between the treatments.
Treatment A
Treatment B
Treatment C
9
5
12
8
7
10
7
7
10
8
5
8
F-ratio =____________________
p-value =__________________
Conclusion:
__These data do not provide evidence of a difference between
the treatments
__There is a significant...
The following data were obtained in a study using three separate samples to compare three different...
The following data were obtained in a study using three separate
samples to compare three different treatments.
Treatment 1
Treatment 2
Treatment 3
4
3
8
3
1
4
5
4
3
1
6
6
M = 4
M = 2
M = 6
SS = 2
SS = 4
SS = 8
a. State the null and alternative hypotheses.
b. Fill in the ANOVA table below.
Source
SS
df
MS
F
Between treatments
Within treatments
Total
c. If α...
(b) The following data was obtained from a study of an ecosystem in which 10 different...
(b) The following data was obtained from a study of an ecosystem
in which 10 different species were randomly identified and their
heights measured. As a Research Assistant for Plant Ecology
Laboratory, determine:
(i) Mean height of all species combined
(ii) Variance as a measure of variability in plant height
(iii) Standard deviation
SPECIES HEIGHT(cm)
1. Beech (Fagus spp.) 300 cm
2.Hackberry (Celtis occidentalis) 90cm
3. Southern red oak (Quercus faclcata) 80 cm
4. Dogwood (Comus florid) 600 cm
5....
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