Answer:
Islam
Explanation:
The historial impact of Islam upon trade, particularly in West Africa, greatly increased the wealth of African people and helped form many great African empires.
Given that a directional hypothesis is a prediction made by a researcher regarding a positive or negative change, relationship, or difference between two variables of a population, a two-tailed test is the perfect tool to validate it because a two-tailed test is designed to examine both sides of a specified data range.
So the final answer to this question is:
True.
Answer:
Contemporary writers sometimes use whelm to denote a middle stage between underwhelm and overwhelm.
Explanation:
[OC.Expository] (An Argumentative is trying to prove a point. A Narrative is a spoken or written account of connected events; a story. An Expository is intended to explain or describe something. Persuasive is trying to get someone to think a certain way.)
