The Coach of an Adult Master's Swim Class Selected Eight

question 15

Multiple Choice

The coach of an adult Master's Swim class selected eight swimmers within each of the two age groups shown below.A 50-yard freestyle time is recorded for each swimmer.The resulting times (seconds) are shown below.Which statistical test would you choose to compare the two groups?

• A)t-test for independent samples with known variances
• B)t-test for independent samples with unknown variances
• C)t-test for paired samples
• D)z-test for two independent proportions

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Definitions:

Managerial Rules of Thumb

Informal guidelines or principles that managers use, based on experience and practice, to make decisions and solve problems.

Mathematical Models

Representations of real-world systems or phenomena using mathematical concepts and language to analyze and predict behaviors.

Bureaucracy

A system of governance or organization characterized by standardized procedures, hierarchical structure, and formal rules.

Max Weber

A German sociologist, philosopher, and political economist whose ideas influenced social theory and social research, known for his works on bureaucracy and organizational structures.