Calculate the standard error for p=0.5p = 0.5p=0.5 and n=200n = 200n=200.
sqrt0.25/200\\sqrt{0.25/200}sqrt0.25/200
sqrt0.25/20\\sqrt{0.25/20}sqrt0.25/20
sqrt0.5/200\\sqrt{0.5/200}sqrt0.5/200
sqrt0.5/20\\sqrt{0.5/20}sqrt0.5/20