Thermometers Used in the Laboratory Must Be Calibrated Before They

question 16

Multiple Choice

Thermometers used in the laboratory must be calibrated before they are put into use.This is accomplished by:

• A) Sending to the National Institute of Standards and Technology (NIST) to determine its accuracy
• B) Checking against an NIST thermometer
• C) Measuring the grades to make sure they are the standard size and accuracy
• D) Using a colored dye

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Definitions:

Null Hypothesis

A statement of no effect or no difference, used as a default assumption until evidence indicates otherwise.

Test Statistic

A value calculated from a sample of data that is used to evaluate the validity of a hypothesis in statistical hypothesis testing.

α

Typically used to represent the significance level in hypothesis testing, which is the probability of rejecting the null hypothesis when it is actually true.

P-value

The probability of observing data at least as extreme as the observed data, assuming the null hypothesis is true.