You go out and collect the following estimates of earthworms /acre:
54.276

57,378

51,108

66,190

66,232

59,018

57,159
These data yield the following: y = 58.766, and s = 5,6896%
a) Construct a 80% confidence interval for these data.
b) Construct a 99% confidence interval for these data.
c) Darwin once estimated that an acre of soil had about 50,000 worms in it. Is his estimates consistent with the data above? (Historical note: His estimate was considered way too high in his day).