A Researcher in Interested in Whether Students Who Are Musicians

question 43

Multiple Choice

A researcher in interested in whether students who are musicians have higher intelligence test scores than students in the general population.The researcher predicts that playing a musical instrument is associated with higher intelligence test scores.The researcher selects a sample of 75 musicians from local high schools and gives them an intelligence test.She compares their average intelligence to that of students in the general population and finds that z_obt = +1.92.This is a _____ test and the researcher should conclude _____.

• A)one-tailed; that students who are musicians score significantly higher on intelligence tests
• B)two-tailed; that students who are musicians score significantly higher on intelligence tests
• C)one-tailed; that students who are musicians do not score significantly higher on intelligence tests
• D)two-tailed; that students who are musicians do not score significantly higher on intelligence tests

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Definitions:

ALU

Arithmetic Logic Unit, a critical component of a computer's CPU that performs arithmetic and logical operations.

Physical Memory

The actual hardware that stores data on a computer, such as RAM (Random Access Memory) and ROM (Read-Only Memory).

Climate

The average weather conditions in an area over a long period, including temperature, precipitation, and wind.

Political Boundaries

Invisible lines defining the geographical territory of a state, nation, or administrative unit, often established through legal or political agreements.