Use the Given Degree of Confidence and Sample Data to Find

question 72

Multiple Choice

Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation ?.
Assume that the population has a normal distribution. Round the confidence interval limits to one more decimal place than is used for the original set of data.
-The football coach randomly selected ten players and timed how long each player took to perform a certain drill. The times (in minutes) were:
$$\begin{array} { c c c c c } 7 & 9 & 13 & 6 & 7 \\5 & 9 & 5 & 15 & 13\end{array}$$
Find a $95 \%$ confidence interval for the population standard deviation $\sigma$ .

• A) \(0.8 \mathrm {~min} < \sigma < 2.4 \mathrm {~min}\)
• B) \(2.4 \mathrm {~min} < \sigma < 6.0 \mathrm {~min}\)
• C) \(2.5 \mathrm {~min} < \sigma < 6.0 \mathrm {~min}\)
• D) \(2.5 \mathrm {~min} < \sigma < 6.6 \mathrm {~min}\)

Interpret the meaning and limitations of different variable types in research contexts.

Analyze the suitability of data visualization types (bar charts, pie charts) for various data.

Understand the concept of chirality and achirality in molecules.

Identify and predict the optical activity of molecules.

---

Definitions:

Collagen

A protein that provides structure and strength to various connective tissues in the body, including skin, ligaments, tendons, and bones.

Marfan Syndrome

Marfan syndrome is a genetic disorder affecting the body's connective tissue, leading to abnormalities in the heart, blood vessels, bones, joints, and eyes.

Elastin Fibers

Protein fibers found in connective tissue that allow tissues to resume their shape after stretching or contracting.

Hyperextensible Joints

Joints that move beyond the normal range of motion due to loose ligaments, often associated with conditions like Ehlers-Danlos syndrome.