QMB 3250 UF QUESTIONS WITH 100% CORRECT
SOLUTIONS!!
One-way ANOVA test null hypothesis
M1=M2=M3=M4....
tests the difference between population means, so we are looking to see if the difference is not
equal
replicates formula
# of experamental units
--------------------------
# of treatments
interaction null and alternate hypothesis
Ho: Interaction is not significant
Ha: Interaction is significant
advantages of studying two factors simultaneously in an experiment?...
a) It is more efficient to study two factors simultaneously rather than separately.
b) We can reduce the residual variation in a model by including a second factor thought to
influence the response.
c) We can investigate interaction between factors
, multiple regression?
two quantitative variables predicting a third quantitative variable
two way ANOVA
two factors
one way ANOVA
one factor
another name for residuals?
error
(i.e. DFE -> degrees of freedom error)
to find degrees of freedom total from an ANOVA table?...
take the total degrees of freedom and add 1
what does it mean if 0 is included in the confidence interval?
that there is a statistically significant difference
What does N and n represent in Kruscall Walis test?
N - total number in sample
n - number in each group
what is a dead giveaway for multicollenierity?
SOLUTIONS!!
One-way ANOVA test null hypothesis
M1=M2=M3=M4....
tests the difference between population means, so we are looking to see if the difference is not
equal
replicates formula
# of experamental units
--------------------------
# of treatments
interaction null and alternate hypothesis
Ho: Interaction is not significant
Ha: Interaction is significant
advantages of studying two factors simultaneously in an experiment?...
a) It is more efficient to study two factors simultaneously rather than separately.
b) We can reduce the residual variation in a model by including a second factor thought to
influence the response.
c) We can investigate interaction between factors
, multiple regression?
two quantitative variables predicting a third quantitative variable
two way ANOVA
two factors
one way ANOVA
one factor
another name for residuals?
error
(i.e. DFE -> degrees of freedom error)
to find degrees of freedom total from an ANOVA table?...
take the total degrees of freedom and add 1
what does it mean if 0 is included in the confidence interval?
that there is a statistically significant difference
What does N and n represent in Kruscall Walis test?
N - total number in sample
n - number in each group
what is a dead giveaway for multicollenierity?
