The Instrument That Emits a High-Frequency Sound Beam to Measure

question 57

Multiple Choice

The instrument that emits a high-frequency sound beam to measure the depth of the ocean developed in the 1950s is the:

• A)GLORIA.
• B)precision-depth recorder (PDR).
• C)Seabeam.
• D)SeaMARC.
• E)SeaWif.

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Definitions:

Critical Value

A threshold in hypothesis testing that defines the boundary for rejecting the null hypothesis.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, crucial for assessing the significance of test statistics.

Chi-square Statistic

A measure used in statistics that assesses how well observed data fit with expected data.

Critical Value

A threshold in hypothesis testing that defines the boundaries of the acceptance region and rejection region for test statistics.