Confidence interval for two independent means

3 Activities

A 90% confidence interval for the difference in the mean IQ scores between males and females is (−4,7)(-4, 7)(−4,7).   Interpret the result.  

A the 10% level of significance there is no evidence of a difference between male and female IQ scores.

A the 10% level of significance there is evidence of a difference between male and female IQ scores.

A the 10% level of significance there is no evidence that male IQ scores are lower than female IQ scores.

A the 5% level of significance there is no evidence that male IQ scores are higher than female IQ scores.

I don't know