According to research, 51% of households nationwide used natural gas for heating

Question

According to research, 51% of households nationwide used natural gas for heating during a certain year. Recently, a survey of 3300 randomly selected households showed that 1716 used natural gas. Give the null and alternative hypotheses to test whether the 51% national rate has changed. State the null and alternative hypotheses using words. OA. Ho: The proportion of households that use natural gas has changed and is not 0.51. OB. Ho: The proportion of households that use natural gas has not changed and is 0.51. : The proportion of households that use natural gas has not changed and is 051 Ha: The proportion of households that use natural gas has increased and is greater than 0.51 Ha: The proportion of households that use natural gas has changed and is not 0.51. Ho: The proportion of households that use natural gas has increased and is greater than 0.51. Ha: The proportion of households that use natural gas has decreased and is less than 0.51. 0 D.

Explanation / Answer

Null and alternative hypotheses using words: Option C is correct.

Null and alternative hypotheses using symbols: Option D is correct.

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