Assume that monthly returns are normally distributed with a mean of 1 percent and a sample standard deviation of 4 percent. The population standard deviation is unknown. Construct a 95 percent confidence interval for the sample mean of monthly returns if the sample size is 24.

1 + and minus 1.96 x 4/square root 24

(-0.60,2.60)

this is what I did can someone tell me if i'm correct