please help to answer this

(b) Based on experience, on average, a lab technician spends at least 3.2 hours solving a problem on troubleshooting. A random sample of 25 computers with this problem is checked and found that the technician spends an average of 2.8 hours and a standard deviation of 0. 14 hours to solve the problem. (i) State the appropriate statistical test related to the above case study. (ii) At a 1% signicance level, is there enough evidence to accept the claim