What Is the Minimum Sample Size Required to Estimate a Population

question 82

Multiple Choice

What is the minimum sample size required to estimate a population mean with 95% confidence when the desired margin of error is E = 1.5? The population standard deviation is known to be 10.75.

• A) n = 138
• B) n = 139
• C) n = 197
• D) n = 198

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