$$\text { TABLE 8-5 }$$ 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.

Question

Quizplus · Accepted Answer

A 95% confidence interval is narrower than a 99% confidence interval because it has a lower confidence level, meaning less certainty and thus a smaller range.

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

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