Find the Confidence Interval Specified $\sigma = 14.5$ Construct A Interval

question 26

Multiple Choice

Find the confidence interval specified.
-30 students were randomly selected from a large group of students taking a certain calculus test. The mean score for the students in the sample was 78. Assume that $\sigma = 14.5$ . Construct a $99 \%$ confidence interval for the mean score, $\mu$ , of all students taking the test.

• A)\(73.50\) to \(82.50\)
• B) \(71.21\) to \(84.79\)
• C) \(71.18\) to \(84.82\)
• D) \(71.48\) to \(84.52\)

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Definitions:

1,2-dichloroethene

An organic compound with the formula C2H2Cl2, existing as two geometric isomers: cis and trans, used as a solvent and in the manufacture of other chemicals.

Isomeric Form

Refers to molecules that have the same molecular formula but differ in the arrangement of atoms or orientation in space, leading to different physical and chemical properties.

Dipole Moment

A measure of the separation of positive and negative charges in a system, indicating the polarity of a chemical bond or molecule.

Intermolecular Attractions

Forces which cause attraction between molecules, influencing the physical properties of substances; includes hydrogen bonds and van der Waals forces.