View Answered Questions
No. & Date Asked  Question 

# 119 :: 3/20/08

Is is possible to modify a semantic differential scale into a 10point scale? If so, should the data be treated as ordinal or interval?
. . .
Bell Curve,
ANOVA,
Ordinal,
Interval 
# 194 :: 5/14/08

Why should you use ANOVA instead of several t tests to evaluate mean differences when an experiment consists of three or more treatment conditions?. . .
Bonferroni correction,
ANOVA,
Type I Error 
# 203 :: 5/22/08

How to determine the sample size for comparing mulltiple parameters like Height , weight, Blood pressure , Blood parameters like blood glucose, total. . .
Sample Size,
Power,
ANOVA,
ttest 
# 342 :: 8/13/08

In a oneway ANOVA, there are three treatments with n1 = 5, n2 = 6 and n3 = 5. The rejection region for this test at the 5% level of significance is__. . .
ANOVA,
Fstatistic 
# 343 :: 8/13/08

The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit.. . .
ANOVA 
# 386 :: 9/17/08

I am calculating the effectiveness of an educational intervention using a pretestposttest design. I plan to run an ANCOVA on the scores with the pret. . .
Covariate,
ANCOVA,
ANOVA 
# 426 :: 9/29/08

can individual scores of a 542 student be converted into percentage and fed into spss for anova and tukey test. . .
Percent Score,
ANOVA 
# 503 :: 11/7/08

Choose a variable and collect data for at least three different groups (samples). Compare the means of the three groups using the oneway ANOVA techni. . .
ANOVA,
Fstatistic 
# 528 :: 11/28/08

In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five te. . .
ANOVA 
# 538 :: 12/9/08

When would it be appropriate to use ANOVA and when is it appropriate to use a paired t test? Be specific and give examples.. . .
ANOVA,
Paired ttest 
# 562 :: 12/17/08

Why does the main factor MSs in 2 way ANOVA sometimes carry along interaction effect?. . .
ANOVA,
2Way ANOVA 
# 566 :: 12/19/08

In an ANOVA test there are 5 observations in each of three treatments. The degrees of freedom in the numerator and denominator respectively are:
a. . . .
ANOVA,
Degrees of Freedom 
# 597 :: 1/30/09

TRUE OR FALSE
1. ANOVA is used when we want to know if more than two population means are equal.
2. The sum of the squares error measures the vari. . .
ANOVA 
# 600 :: 1/30/09

True or False
The moving average method averages out cyclical and irregular components.
When using Chi Square , the sum of the expected freque. . .
ANOVA,
ChiSquare,
Goodnees of Fit,
F distribution 
# 625 :: 2/11/09

Mean output of solar cells of three types are measured six times under random light intensity over a period of 5 minutes, yielding the results shown. . . .
ANOVA 
# 629 :: 2/17/09

The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit.. . .
ANOVA 
# 697 :: 4/25/09

A random sample of 30 executives from companies with assets over $1 million was selected and asked for their annual income and level of education. Th. . .
ANOVA,
Seasonal Data 
# 709 :: 4/30/09

Discuss which analysis of variance should be applied when an experiment has more than one independent variable. Discuss the assumptions and limitation. . .
ANOVA,
Factorial ANOVA,
2Way ANOVA 
# 713 :: 5/3/09

Do students at various colleges differ in how sociable they are? Twentyfive students were randomly selected from each of three colleges in a particul. . .
ANOVA,
EtaSquared,
Effect Size,
ANOVA Summary Data 
# 850 :: 3/5/10

The following is a partial ANOVA table.
Source sum of Squares df . . .
ANOVA Table,
ANOVA 
# 874 :: 1/3/11

Martin Motors has in stock three cars of the same make and model. The president would like to compare the gas consumption of the three cars (labeled c. . .
ANOVA 