Use the Given Information to Find the Minimum Sample Size $\mu$

question 101

Multiple Choice

Use the given information to find the minimum sample size required to estimate an unknown population mean $\mu$
-How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of athletic footwear? We want 98% confidence that the sample mean is within $400 of the population mean, and the
Population standard deviation is known to be $1400.

• A) 34
• B) 82
• C) 67
• D) 48

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