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When the conclusion of randomized comparative experiment is that there is "no significant difference" in the...

When the conclusion of randomized comparative experiment is that there is "no significant difference" in the response, what does this mean?

When the conclusion of randomized comparative experiment is that there is "no significant difference" in the response, what does this mean?

It means that the difference in the response between the groups cannot be explained by chance variation alone.

It means that the difference in the response between the groups is very large.

It means that the difference in the response between the groups cannot be explained by chance variation, and it can only be explained by the fact that different treatments were applied.

It means that the difference in the response between the groups could be explained by chance variation.

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It means that the difference in the response between the groups could be explained by chance variation.

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