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According to a study in a previous year, 53.0 % of households nationwide used natural gas for heating during a year. Recently, a survey of 3,400...
According to a study in a previous year, 53.0% of households nationwide used natural gas for heating during a year. Recently, a survey of 3,400 randomly selected households showed that 54.0% used natural gas. Use a 0.05 significance level to test the claim that the 53.0% national rate has changed. Formulate the null and alternative hypotheses. Choose the correct answer below.
A.
: p=0.53: p<0.53
B.
: p=0.53: p not =0.53
C.
: p=0.53: p>0.53
D.
: pnot =0.53: p=0.53
Z=
P=
Formulate the null and alternative hypothesis?