We Draw a Random Sample of Size 25 from the Normal

question 128

Multiple Choice

We draw a random sample of size 25 from the normal population with variance 2.4. If the sample mean is 12.5, what is a 99% confidence interval for the population mean?

• A) [11.2600, 13.7400]
• B) [11.3835, 13.6165]
• C) [11.7019, 13.2981]
• D) [11.7793, 13.2207]

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Definitions:

Equilibrium Constant

A mathematical expression that relates the concentrations of reactants and products in a chemical reaction at equilibrium.

Ph

A measure that provides insight into the acidity or basicity level of an aqueous solution; values range from 0 (very acidic) to 14 (very basic).

Hemoglobin

A red protein responsible for transporting oxygen in the blood of vertebrates, its molecule comprises four subunits, each containing an iron atom.

Le Chatelier's Principle

A principle that states that if a system at equilibrium is subjected to a change in concentration, temperature, volume, or pressure, then the system adjusts to counteract that change and restore a new equilibrium.