Do students need/no need to reference who owned computers scored 10 points higher than those who did not own computers?

This statement needs a reference. It must be supported by a reputable primary source.

Needs reference, as the statement was retrieved from an outside source

Need to reference.

When using information such as number percentages, there must be a reference.

A. Need to reference.

I think it needs a reference since it is stating facts about 10 points which might not be accurate. I think it would be good to know who made this statement to verify that they are credible.

Needs a reference, this statement needs supported by a primary or secondary source.

A Need to reference. The information contains a statistic that is not common knowledge

I believe someone who owns a computer may score higher because they can search more on the related field