$$\text { TABLE 8-5 }$$ The Actual Voltages of Power Packs Labeled as 12 Volts

question 72

True/False

$$\text { TABLE 8-5 }$$ The actual voltages of power packs labeled as 12 volts are as follows: 11.77, 11.90, 11.64, 11.84, 12.13, 11.99, and 11.77.
-Referring to Table 8-5, a 95% confidence interval for the mean voltage of the power pack is wider than a 99% confidence interval.

---

Definitions:

Unstructured Interview

An interviewing technique where the questions are not prearranged, allowing for a more spontaneous and flexible conversation.

Poor Validity

Refers to a lack of accuracy in measuring what a test or research study is designed to measure, questioning the results' trustworthiness.

Poor Reliability

Referring to the lack of consistency or dependability in the results of a test, measurement, or research finding.

Experimental Group

In an experiment, the group exposed to a variable that is manipulated, the independent variable.