Help please solve

1.4.7-1 Question Help ne Here is a sample of amounts of weight change (kg) of college students in their freshman year: 11, 9, 3, -5, where - 5 represents a loss of 5 kg and positive values represent weight gained. Here are ten bootstrap samples: {11, 11, 11, 3}, {11, - 5, 3, 11}, {11, - 5, 9, 3), (9, -5, 3, 11}, (3, 3, 3, 9), {9, -5, 9, -5}, {11, 9, -5, 3}, {- 5, 9, - 5, 9}, {- 5, 3, -5, 9}, {9, 11, 11, 11}. 5 Complete parts (a) and (b) below. ts a. Using only the ten given bootstrap samples, construct an 80% confidence interval estimate of the mean weight change for the population. kg