Pregunta: Salarios iniciales de graduados universitarios que tomaron un curso de estadística: confianza del 95%; n=28, top enclose x=45 678, la población se distribuye normalmente y se sabe que σ es $9 900. Calcule el Margen de error E (exprese el resultado a 2 decimales)

Take note of the information provided in the problem. We are given that we need to calculate the margin of error of a confidence interval which can be accomplished using the formula , where: = margin of error, = z-value for the desired confidence level (in this case, 1.96 for a 95% confidence level), = population standard deviation, and = sample size.