Calculate the standard error. May normality be assumed? (Round your answers to 4 decimal places)

Standard Error Normality

A. n=-23 pie symbol=0.27 _________________ _____________

B. n=47 pie symbol= 0.19__________________ _____________

C. n=105 pie symbol=0.20_________________ _____________

D. n=459 pie symbol=0.003________________ ______________