Use the margin of error, confidence level, and standard deviation $ sigma$ to find the minimum sample, n, required to estimate an unknown population mean $ mu$ .Margin of Error = $134Confidence level = 95% $ sigma$ =$542

CONFIDENCE INTERVALS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Use the margin of error, confidence level, and standard deviation

A	62
B	44
C	63
D	109

Explanation:

Detailed explanation-1: -Confidence intervals are used to estimate population means.

Detailed explanation-2: -Answer D: The samples must be independent of each other.

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RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

CONFIDENCE INTERVALS