Question

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

		Standard Error		Normality
(a)	n = 20, ππ = .21			(Click to select)  No  Yes
(b)	n = 48, ππ = .27			(Click to select)  Yes  No
(c)	n = 117, ππ = .53			(Click to select)  Yes  No
(d)	n = 593, ππ = .002			(Click to select)  Yes  No

Answer 1

Solution:

a)

Standard error = (*(1-))/n =  (0.21 * 0.79) / 20 = 0.0889

b)

Standard error = (*(1-))/n =  (0.27 * 0.73)/ 48 = 0.0641

c)

Standard error = (*(1-))/n =  (0.53 * 0.47)/ 117 = 0.0461

d)

Standard error= (*(1-))/n =  (0.002*0.998)/ 593 = 0.0018