Determine Whether the Given Conditions Justify Using the Margin of Error

question 21

Multiple Choice

Determine whether the given conditions justify using the margin of error $\mathrm { E } = \mathrm { z } _ { \alpha / 2 } \sigma / \sqrt { \mathrm { n } }$ when finding a confidence interval estimate of the population mean $\mu$ .
-The sample size is $\mathrm { n } = 10$ and $\sigma$ is not known.

• A) No
• B) Yes

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