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Showing of 21 Questions
No. & Date AskedQuestion
# 874 :: 1/3/11
Question 874 has been Answered
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

# 850 :: 3/5/10
Question 850 has been Answered
The following is a partial ANOVA table. Source sum of Squares df . . .

ANOVA Table, ANOVA

# 713 :: 5/3/09
Question 713 has been Answered
Do students at various colleges differ in how sociable they are? Twenty-five students were randomly selected from each of three colleges in a particul. . .

ANOVA, Eta-Squared, Effect Size, ANOVA Summary Data

# 709 :: 4/30/09
Question 709 has been Answered
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, 2-Way ANOVA

# 697 :: 4/25/09
Question 697 has been Answered
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

# 629 :: 2/17/09
Question 629 has been Answered
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

# 625 :: 2/11/09
Question 625 has been Answered
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

# 600 :: 1/30/09
Question 600 has been Answered
True or False The moving average method averages out cyclical and irregular components. When using Chi Square , the sum of the expected freque. . .

ANOVA, Chi-Square, Goodnees of Fit, F distribution

# 597 :: 1/30/09
Question 597 has been Answered
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

# 566 :: 12/19/08
Question 566 has been Answered
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

# 562 :: 12/17/08
Question 562 has been Answered
Why does the main factor MSs in 2 way ANOVA sometimes carry along interaction effect?. . .

ANOVA, 2-Way ANOVA

# 538 :: 12/9/08
Question 538 has been Answered
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 t-test

# 528 :: 11/28/08
Question 528 has been Answered
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

# 503 :: 11/7/08
Question 503 has been Answered
Choose a variable and collect data for at least three different groups (samples). Compare the means of the three groups using the one-way ANOVA techni. . .

ANOVA, F-statistic

# 426 :: 9/29/08
Question 426 has been Answered
can individual scores of a 542 student be converted into percentage and fed into spss for anova and tukey test. . .

Percent Score, ANOVA

# 386 :: 9/17/08
Question 386 has been Answered
I am calculating the effectiveness of an educational intervention using a pretest-posttest design. I plan to run an ANCOVA on the scores with the pret. . .

Covariate, ANCOVA, ANOVA

# 343 :: 8/13/08
Question 343 has been Answered
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

# 342 :: 8/13/08
Question 342 has been Answered
In a one-way 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, F-statistic

# 203 :: 5/22/08
Question 203 has been Answered
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, t-test

# 194 :: 5/14/08
Question 194 has been Answered
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

# 119 :: 3/20/08
Question 119 has been Answered
Is is possible to modify a semantic differential scale into a 10-point scale? If so, should the data be treated as ordinal or interval? . . .

Bell Curve, ANOVA, Ordinal, Interval