Suppose You Wish to Estimate a Population Mean Based

question 57

Multiple Choice

Suppose you wish to estimate a population mean based on a sample of n observations. What sample size is required if you want your estimate to be within 2 standard deviations of with probability equal to 0.95, if you know the population standard deviation is 12?

• A) 239
• B) 196
• C) 139
• D) 98

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Definitions:

Campaign

Organized efforts to achieve a specific goal, often used in contexts such as marketing, political movements, or social awareness initiatives.

Territory Acquisition

The process or act of obtaining new lands or jurisdictions, often through purchase, conquest, annexation, or treaty, to expand the geographical bounds or influence of a state or nation.

Polk

James K. Polk, the 11th President of the United States (1845-1849), known for his expansionist policy, including the annexation of Texas and the acquisition of territories following the Mexican-American War.

Cultural Diversity

The existence of a variety of cultural or ethnic groups within a society, valued for promoting mutual respect and understanding.