A Study Was Designed to Investigate the Effects of Two

question 187

Essay

A study was designed to investigate the effects of two variables -(1)a studentʹs level of
mathematical anxiety and (2)teaching method - on a studentʹs achievement in a
mathematics course. Students who had a low level of mathematical anxiety were taught
using the traditional expository method. These students obtained a mean score of 300 and
a standard deviation of 50 on a standardized test. Find and interpret the z-score of a
student who scored 440 on the standardized test.

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Definitions:

Circumstantial Evidence

Evidence that relies on an inference to connect it to a conclusion of fact, unlike direct evidence that directly proves a fact.

Relevant Evidence

Information and facts presented in a legal proceeding that are directly related to the matter being decided and can influence the outcome.

Social Security Number

A unique identification number assigned to U.S. citizens and some residents to track earnings and benefits for social security purposes.

Tape-recording

The act of recording sound, especially conversations, onto magnetic tape as a means of keeping a record.