Exam 15: Frequency Distribution, cross-Tabulation, and Hypothesis Testing

An asymmetrical lambda value of 1 happens when each independent variable category is associated with a single category of the dependent variable.

The Mann-Whitney U test is a statistical test for a variable measured on an ordinal scale,comparing the difference in the location of two populations based on observations from two independent samples.

A measure of central tendency given as the value above which half of the values fall and below which half of the values fall is the ________.

The null hypothesis is always the hypothesis that is tested.

Which statement is not correct about cross-tabulations?

Also known as beta error,________ occurs when the sample results lead to the nonrejection of a null hypothesis that is in fact false.

The difference between the smallest and the largest values in a distribution is the ________.

For the parametric case,involving proportions for two independent samples,the null and alternative hypotheses are ________.

Type I error occurs when the sample results lead to the rejection of the null hypothesis when it is in fact true.

In tests of associations,the null hypothesis is that there is no association between the variables (H0:......is NOT related to.... ).

The Kolmogorov-Smirnov one-sample test is a goodness of fit test that compares the cumulative distribution function for a variable with a specified distribution.

Mean,median,and mode are measures of variability.

If all the data points are multiplied by a constant,the interquartile range is multiplied by the same constant.

Which statement is not true concerning the t distribution?