There're 400 students in Tsing Hua University undergraduate level, which 95 of them had learned or are learning to play guitar. Let p be the proportion of Tsing Hua University students who had learned or are learning to play guitar. Could we declare that proportion of Tsing Hua University students (from all levels) who had learned or are learning to play guitar is less than 1/4? (Use ? = 0.05)