Analysis of a sample of 50 of the second quarter sales of a Dubai fashion store shows a difference ( - ) of AED 236, z = +2.37 indicating that the difference is significant. Calculate the standard deviation of the sample (1 decimal place) .
A) AED 697.3
B) AED 704.1
C) AED 723.6
D) AED 734.9
Correct Answer:
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