What are the assumptions of ANOVA?
In a one-way between-groups ANOVA, what degrees of freedom do I
need to know?
In a one-way within groups ANOVA, what degrees of freedom do I
need to know?
Name one pro and one con of using a within-groups ANOVA.
What is a post hoc test? When and why are they used? What is
the name of one post hoc test?
1.After performing an ANOVA test, with (3,4) degrees of freedom,
for data collected during an experiment trying to determine if
there is at least one difference between groups. You get a
calculated F value of 7.52. Using the table below, find the
appropriate critical F value. What should be your conclusion(s),
based on those 2 F values and α? Check all that apply.
Critical values of F (α= 0.05)
Degrees of freedom (x,y)
1
2
3
4
5
1
161.45...
7.2 Question 1 Give the degrees of freedom for the chi-square
test based on the two-way table.
D
E
F
G
Total
A
39
34
43
34
150
B
78
89
70
93
330
C
23
37
27
33
120
Total
140
160
140
160
600
Degrees of freedom =
b. Find the expected count and the contribution to the
chi-square statistic for the (Group 2, Yes) cell in the two-way
table below.
Yes
No
Group 1
733
255
Group...
Write out the ANOVA shell (sources of variability & degrees
of freedom) for each of the following experiments:
(c) A 1-way treatment structure with 6 treatments run in a 6x6
Latin square design structure where the square was repeated 3 times
using different row and column blocks in each square.
Write out the ANOVA shell (sources of variability & degrees
of freedom) for each of the following experiments:
(a) The 4 levels of one treatment variable (Trt) are assigned to
EUs in a balanced CRD with 10 replicates per treatment group.
(b) Treatments from a 2-way factorial treatment structure where
factor A has 3 levels & factor B has 4 levels are assigned to
EUs in a balanced CRD with 6 replicates per treatment.
(c) Five treatments are assigned to...
Complete the following two-way ANOVA table. Use
α=0.05α=0.05.
Source
Degrees of Freedom
Sum of Squares
Mean Square
F
P−P−value
Row
3
126.98
Column
4
37.49
Interaction
380.82
Error
60
Total
1278.94
12.14 Calculating the ANOVA F test
P-value. For each of the following situations,
find the degrees of freedom for the F statistic and then
use R to calculate the P-value.
(a) Six groups are being compared with five
observations per group. The value of the F statistic is
2.47.
(b) Four groups are being compared with 11
observations per group. The value of the F statistic is
5.03.
(c) Five groups are being compared using 65 total...
write the degrees of freedom (F) and the state the water is in.
Calculate quality or degrees of superheat if applicable.
a. What is the specific volume and vapor pressure (saturation
pressure) of saturated liquid at 64° C?
b. What is the specific volume and vapor pressure of saturated
vapor at 174 °C?
c. What is the quality of wet steam if V= 8.35 cm3/g at 10,703
kPa? What is the saturation temperature What is the specific
internal Energy?