Quiz on Non-parametric tests

In a non-parametric test, the hypothesis is concerned with the _________ as the location parameter.

• Mean

• Median

• Mode

• Variance

Which of the following is a reason to use a non-parametric test?

• The population sample size is very large

• The underlying data meets the assumptions about the population sample

• The analyzed data is ordinal or nominal

• All of the above

.The One Sample Sign Test is an alternative to the:

• Paired t-test

• One-sample t-test

• ANOVA

• Chi-square test

In the One Sample Sign Test, under the null hypothesis what is the probability 'p' that a value is greater than the hypothesized median?

• 1

• 0.5

• 0

• Depends on the sample

The Wilcoxon Signed-Rank Test considers the _________ of the deviations, which the Sign Test ignores.

• Direction

• Magnitude

• Mean

• Mode

The Wilcoxon Signed-Rank Test considers the _________ of the deviations, which the Sign Test ignores.

• Rank sum

• Goodness of fit

• Randomness

• Association

What does the Mann-Whitney U-test compare?

• A single sample to a hypothesized median

• Two independent samples

• Paired samples

• The randomness of a sequence

A "run" in the context of the Run Test for Randomness is a sequence of:

• Ascending values

• Descending values

• Symbols of one kind followed by symbols of another

• Identical values

What is the null hypothesis for the Kruskal-Wallis Test?

• The population means are equal

• The population medians are equal

• The samples come from a normal distribution

• The samples are dependent

The Chi-Square Test of Independence is used to determine if there is a significant relationship between two _________ variables.

• Continuous

• Nominal (Categorical)

• Ranked

• Dependent