The Speed of Sound in Dry Air at 20ºC Is

question 21

Multiple Choice

The speed of sound in dry air at 20ºC is 343 m/s.The speed of sound in dry air at 80ºC is

• A)86.0 m/s
• B)172 m/s
• C)377 m/s
• D)686 m/s
• E)1.27 km/s

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Definitions:

Significant

Denoting a result in statistical analysis that is likely not due to chance, thereby indicating a meaningful difference or correlation.

Z-statistic

A statistic used in hypothesis testing, calculated as the difference between a sample statistic and its hypothesized population parameter, divided by the standard error.

Critical Value

A limit in hypothesis testing that establishes the criteria for dismissing the null hypothesis.

Calculated Value

A numerical value obtained through mathematical computations, often used in statistical tests to determine significance.