Find the Confidence Interval Specified $$\begin{array} { r r r r r } 12.9 & 13.3 & 13.3 & 7.7 & 11.7 \\9.9 & 12.5 & 6.5 & 10.8 & 12.2\end{array}$$

question 4

Multiple Choice

Find the confidence interval specified. Assume that the population is normally distributed.
-The football coach randomly selected ten players and timed how long each player took to perform a certain drill. The times (in minutes) were: $$\begin{array} { r r r r r } 12.9 & 13.3 & 13.3 & 7.7 & 11.7 \\9.9 & 12.5 & 6.5 & 10.8 & 12.2\end{array}$$ Determine a 95% confidence interval for the mean time for all players.

• A)12.80 to 9.40 minutes
• B)9.50 to 12.70 minutes
• C)12.70 to 9.50 minutes
• D)9.40 to 12.80 minutes

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Definitions:

Tristearin

A triester derived from glycerol and stearic acid; it's a fat commonly found in animal and vegetable fats.

Aqueous Solution

A solution in which water is the solvent and can dissolve a variety of solutes, both ionic and molecular.

Immiscible Liquids

Liquids that do not mix together to form a homogeneous solution, often separating into distinct layers when combined.

Wax

A diverse class of organic compounds that are malleable at room temperature, typically consisting of long-chain alkanes, esters, or a variety of other compounds.