A Researcher Records the Number of Individual Instruments Identified by Students

question 4

Multiple Choice

A researcher records the number of individual instruments identified by students listening to a piece of classical music.He splits the data into quartiles and reports that students correctly identified three instruments at the 25th percentile,five instruments at the 50th percentile,and eight instruments at the 75th percentile.What are the IQR and SIQR for these data?

• A) the IQR is 3; the SIQR is 1.5
• B) the IQR is 5; the SIQR is 5.0
• C) the IQR is 5; the SIQR is 2.5
• D) There is not enough information to answer this question.

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Definitions:

Risk-Free Rate

The theoretical rate of return on an investment with zero risk of financial loss, typically associated with government bonds.

Market Index

A statistical measure that represents the performance of a group of stocks, bonds, or other assets, serving as a benchmark to track financial and economic performance.

Forecasted Market Return

The estimated average return expected from the market as a whole over a specified future period, based on historical data and economic indicators.

T-Bill Rate

The yield on short-term U.S. government debt securities, known as Treasury bills, which serve as a benchmark for short-term interest rates.