Exam 21: Univariate Statistical Analysis

A significance level is a critical probability associated with a statistical hypothesis test that indicates how likely it is that an inference supporting a difference between an observed value and some statistical expectation is true.

The values that lie exactly on the boundary of the region of rejection for hypothesis-testing are called the _____.

When the data are in ______ form, and the sample size is ______ , the researcher should use parametric statistical procedures.

You are designing a research study and are determining the appropriate statistical technique to use. List the factors you should consider when choosing the appropriate statistical technique.

A univariate t-test is appropriate for testing hypotheses involving some observed mean against some specified value.

A Type II error occurs when you reject the null hypothesis when, in fact, it is true.

The two types of errors researcher run the risk of committing when sampling are _____.

In a brand awareness study of 80 consumers, 52 of them were able to identify "Fusion" as a type of Ford automobile. The chi-square value for a test of this brand awareness was approximately _____.

The scale of measurement used by the researcher determines the allowable statistical techniques in the research study.

The error caused by rejecting the null hypothesis when, in fact, it is true is called a(n) ______ error.

Which type of statistics involves numbers with known, continuous distributions?

When the researcher does not know how the data are distributed, the researcher should use ________ methods of statistics in analyzing the data.

A Type I error occurs when you fail to reject the null hypothesis when the alternative hypothesis is true.

A general term representing how well some computed table or matrix of values matches some population or predetermined table or matrix of the same size is _____.

In hypothesis testing, the values of t that lie on the boundary of the region of rejection are called the critical values.

Selection of the appropriate statistical test to use in a research study depends on all of the following EXCEPT _____.