Which of the following statements is considered a null hypothesis? Individuals w

ID: 3059615 • Letter: W

Question

Which of the following statements is considered a null hypothesis?

Individuals who smoke have a greater chance of developing heart disease than those who do not.

Physical inactivity is related to poorer health status.

Increases in physical activity are associated with increases in cognition.

Children who watch more than 2 hours of TV have the same weight gain as those who watch TV for less than 2 hours.

Individuals who smoke have a greater chance of developing heart disease than those who do not.

Physical inactivity is related to poorer health status.

Increases in physical activity are associated with increases in cognition.

Children who watch more than 2 hours of TV have the same weight gain as those who watch TV for less than 2 hours.

Answer: d. Children who watch more than 2 hours of TV have the same weight gain as those who watch TV for less than 2 hours.

Reason: Null hypothesis always contains equality condition. Option d is the only option that talks about 2 measures being equal.

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