Test Hypotheses Regarding the Difference of Two Independent Means
-A $\alpha = 0.01$

question 54

Short Answer

Test Hypotheses Regarding the Difference of Two Independent Means
-A history teacher believes that students in an afternoon class score higher than the students in a morning class. The results of a special exam are shown below. Can the teacher conclude that the afternoon students have a higher score? Use $\alpha = 0.01$ .

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Definitions:

Nodules

Swellings on the roots of plants, such as legumes, in which symbiotic nitrogen-fixing bacteria (rhizobia) live.

Root Epidermis

The outermost layer of cells in the root of a plant, responsible for absorption of water and minerals from the soil.

Periderm

The protective outer tissue of woody plants and trees, replacing the epidermis as the plant grows.

Lateral Roots

Roots that branch off from the main root to increase the plant's ability to absorb water and nutrients from the soil.