question 55

Essay

$$\text { Under what circumstances can you replace } \sigma \text { with } s \text { in the formula } E = z _ { a / 2 } \cdot \frac { \sigma } { \sqrt { n } } ?$$

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Definitions:

High Freight Rates

The increased costs associated with transporting goods, often due to factors like fuel prices, demand, regulatory fees, and infrastructure issues, impacting economies and consumers.

Excessive Interest Rates

Interest rates that are significantly higher than what would be considered reasonable or fair, often associated with predatory lending practices.

Low Tariffs

Refers to relatively minimal taxes or duties placed on the import or export of goods which can encourage free trade and lower the cost of imported goods.