SOLUTION: In​ 1997, a survey of 900 households showed that 150 of them use​ e-mail. Use those sample results to test the claim that more than​ 15% of households use​
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Question 1081731: In 1997, a survey of 900 households showed that 150 of them use e-mail. Use those sample results to test the claim that more than 15% of households use e-mail. Use a 0.05 significance level. Use this information to answer the following questions. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! p hat =0.167
Using standard hypothesis testing, z=(0.167-0.15)/sqrt{0.15*0.85/900); sqrt term is 0.0119
z=0.017/0.0119=1.43 fail to reject Ho; insufficient evidence that this is a significant difference at the 0.05 level.
p-value is 0.08 for a one way test.
