It Is Known That the Population Variance Equals 484

question 48

Multiple Choice

It is known that the population variance equals 484. With a 0.95 probability, the sample size that needs to be taken to estimate the population mean if the desired margin of error is 5 or less is

• A)25
• B)74
• C)189
• D)75

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Definitions:

Current Account

A component of a country's balance of payments that measures the trade of goods and services, along with earnings on foreign investments minus payments made to foreign investors.

International Monetary Reserves

Assets held by a country's central bank to back its national currency and provide financial and economic stability.

Remittances

Payments by immigrants to family members and others located in the immigrants’ home countries.

Exchange Rate

A measure representing how much one currency can be exchanged for another, impacting international trade and finance.