According to a research, 52.0% of households nationwide used natural gas for heating during a year
According to a research, 52.0% of households nationwide used natural
gas for heating during a year. Recently, a survey of 2,400 randomly selected households showed that 53.0% used natural gas. Use a 0.05 significance level to test the claim that the 52.0% national rate has changed.
A. Formulate the null and alternative hypotheses. Choose the correct answer below.
B. Find the test statistic
C. Find the p value
D. Conclusion – choose from below
A.There is sufficient evidence to support the claim that the percentage of households using natural gas has changed.
B.There is not sufficient evidence to support the claim that the percentage of households using natural gas has changed.
C.There is not enough information to make a conclusion.
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