Exam 1 - ANOVA Flashcards
For a one-way anova, ____ designate the group of things being compared, while ____ are the elements within the factors.
For a one-way anova, factors (treatments) designate the group of things being compared, while levels are the elements within the factors.
T or False. The T-statistic is the variation between factor level divided by the variation within factor level means.
False. The F-statistic is the variation between factor level divided by the variation within factor level means.
T or F. ANOVA’s are powerful because they tell use what factors are different.
False. An ANOVA only tells if there is a difference btwn the factors, but is not used to specify which factor.
____ = (variability between levels) + (variability within levels
Total Variability = (variability between levels) + (variability within levels
In order to use the F-distribution, the data must be ____ and the variances must be _____.
In order to use the F-distribution, the data must be normally distributed and the variances roughly equal.
T or F. A two-way ANOVA is used when there is more than one level.
False. A two-way ANOVA is used when there is more than one FACTOR.
Rational subgroups are subgroups chose for technical reasons ____ which variations may be considered to be due to ____ causes only, while ____ which there may be variations due to ____ causes whose presence it is possible and important to detect.
Rational subgroups are subgroups chose for technical reasons within which variations may be considered to be due to common (chance) causes only, while between which there may be variations due to special (assignable) causes whose presence it is possible and important to detect.
ANOM uses the same assumptions as ANOVA except additionally the factor must be fixed, or _______.
ANOM uses the same assumptions as ANOVA except additionally the factor must be fixed, or not random.
