25 items were placed on test and the test was terminated after a pre-assigned time to 20 hours from the starting time. 10 items failed before time to at 3-8, 5-9, 6-3, 6-5, 7-5, 7-7, 10-5, 13:2, 13-5 and 14-0 hours. If the underlying distribution is Weibull with shape parameter equal to 2, then compute m.l.e. of the scale parameter and estimated standard error of it.