To Compute a 95 Percent Confidence Interval for σ²,we Use

question 75

True/False

To compute a 95 percent confidence interval for σ²,we use n − 1 degrees of freedom and the chi-square points on the distribution curve of χ²_α/2 and of χ²_1−(α/2).

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Definitions:

Standard Deviation

A metric that quantifies the range of diversity or distribution of a series of values.

P-value

The probability of test results being at least as extreme as the observed outcomes, under the belief that the null hypothesis is factual.

Battery Pack

A collection of battery cells or batteries grouped together in a single casing, supplying electric power to a device.

Functioning Time

The duration for which a system or device operates effectively without failure.