Exam 15: Data Analysis II-- Descriptive and Inferential Statistics

Of the following measures of association for ordinal data, a positive value for this statistic allows the researcher to conclude only that "as X increases, Y does not decrease" rather than that "as X increases, Y also increases."

When choosing statistics and considering the level of measurement, one may:

Which of the following is NOT one of the considerations described in the text that are important in choosing appropriate statistics

Indicating that a given result is "statistically significant" means:

Sampling distributions are important for:

Define and clearly distinguish between inferential and descriptive statistics.Give an example of when each might be appropriately used.

If the null hypothesis is true and we set the alpha level at .05, then we will make type I errors:

What is meant by the concept of statistical power What can be done to improve the statistical power of a research project

The statistical procedure called chi square:

Which of the following is NOT a measure of dispersion