Determine Whether the Given Conditions Justify Using the Margin of Error

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 n = 286 and $\sigma = 15$

A) Yes
B) No