In this case, for a test to be statistically significant, p-value must be lower than 0.05. If you and your friend set the confidence level as 95% and find a p value of 0.11, your results are not statistically significant.

Is 0.10 statistically significant?

The significance level usually is chosen in consideration of other factors that affect and are affected by it, like sample size, estimated size of the effect being tested, and consequences of making a mistake. Common significance levels are 0.10 (1 chance in 10), 0.05 (1 chance in 20), and 0.01 (1 chance in 100).

Is 0.12 statistically significant?

close to being statistically significant (p=0.055) fell just short of statistical significance (p=0.12) just very slightly missed the significance level (p=0.086)