A collection of statistical methods that generally requires very few, if any assumptions about the population distribution is known as
parametric methods
nonparametric methods
semiparametric
none of the above
Which of the following tests would be an example of a nonparametric method?
Z test
t-test
sign test
all of the above
none of the above
A nonparametric version of the parametric analysis of variance test is
Kruskal-Wallis Test
Mann-Whitney-Wilcoxon Test
sign-test
Wilcoxon Signed-rank test
none of the above
A nonparametric method for determining the differences between two populations based on two matched samples where only preference data is required is the
a. Mann-Whitney-Wilcoxon test
b. Wilcoxon signed-rank test
c. sign test
d. Kruskal-Wallis Test
e. None of the above
When ranking combined data in a Wilcoxon signed rank test, the data that receives a rank of 1 is the
lowest value
highest value
middle value
This can vary according to data
The collection of statistical methods that require assumptions about the population is known as
distribution free methods
nonparametric methods
either a or b
parametric methods
none of the above
The Spearman rank-correlation coefficient is
a correlation measure based on the average of data items
a correlation measure based on rank-ordered data for two variable
either a or b
none of the above
The level of measurement that allows for the rank ordering of data items is
nominal measurement
ratio measurement
interval measurement
ordinal measurement
none of the above
The level of measurement that is simply a label for the purpose of identifying an item is
ordinal measurement
ratio measurement
nominal Measurement
none of the above
The labeling of parts as "defective" or "nondefective" is an example of