Answer
margin of error = 0.17 and sample mean = 1.88
Work Step by Step
1 ) Find the width of the interval
2.05 - 1.71 = 0.34
2) Find the margin of error by dividing the interval width by two:
0.34/2 = 0.17
3) Subtract the margin of error from upper bound to find mean
2.05 - 0.17 = 1.88
Therefore, margin of error = 0.17 and sample mean = 1.88
