Listed below is the annual rate of return (reported in percent) for a sample of 12 taxable mutual funds.

4.63 4.15 4.76 4.70 4.65 4.52 4.70 5.06 4.42 4.51 4.24 4.52

Using the 0.05 significance level, is it reasonable to conclude that the mean rate of return is more than 4.50%?