Which of the Following Statements Concerning Applications or Capabilities of Soil

question 18

Multiple Choice

Which of the following statements concerning applications or capabilities of soil moisture measuring devices is (are) true for the tensiometer?

• A)requires "destructive sampling" for each measurement
• B)good to turn on automatic irrigation at -50 kPa
• C)used to turn on irrigation when soil moisture potential reaches -200 kPa
• D)would give the same reading for both a loamy sand and a silt loam if both contained 15% moisture
• E)both A and D

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Definitions:

Point Estimate

A single value or statistic used to estimate an unknown population parameter based on sample data.

Population Mean

The mean value of every number within a given population.

Population Proportion

The fraction or percentage of a population that displays a particular attribute or characteristic.

Margin of Error

A measure indicating the range of values above and below a sample statistic in a confidence interval.