In 1997 a subway of 880 households showed that 140 of them u

In 1997, a subway of 880 households showed that 140 of them use e-mail. Use those sample results to test claims services

Solution

Since p value > 0.05, accept null hypothesis

Hence there is no evidence to show that proportion is >15%

H0: p=0.15
Ha: p>0.15
est p	0.15
	n	880
	std error	0.012037
	p	0.159091
	p diff	0.009091
	z stat	0.755255	0.76
	p value	0.223627.
		The result is not significant at p < 0.05.