A Scientist Is Testing Two Different Types of Secchi Discs

question 234

Short Answer

A scientist is testing two different types of Secchi discs. This is an instrument used for determining water clarity. The scientist takes a depth reading (in feet below the surface) with each disc at 8 different locations on a lake. The results of the 8 different locations for each Secchi disc are listed below. Assume the two population distributions are normal. Determine if there is a significant difference in average depth reading for the two discs. Use a significance level of = 0.01.
Use the Data Analysis software if you prefer.
Test Statistic = ______________
Reject Region: Reject H₀ if |t| > ______________
Conclusion: ______________
The sample evidence supports that the two discs ______________.

---

Definitions:

Hyaline Cartilage

A type of connective tissue found in areas such as the nose, trachea, and at the ends of long bones, providing support with some flexibility.

Skeleton

The internal framework of the body composed of bones and cartilage that provides support and protection.

Intervertebral Discs

The soft, cushion-like structures located between the vertebrae of the spine, providing shock absorption and flexibility.

Collagen

A protein that is the main component of connective tissues in animals, providing strength and structure.