Bootstrap comparison of tree diameters. In Exercise 7.85
Chapter , Problem 16.28(choose chapter or problem)
Bootstrap comparison of tree diameters. In Exercise 7.85 (page 471) you were asked to compare the mean diameter at breast height (DBH) for trees from the northern and southern halves of a land tract using a random sample of 30 trees from each region. N(a) Use a back-to-back stemplot or side-by-side boxplotsto examine the data graphically. Does it appear reasonableto use standard t procedures?(b) Bootstrap the difference in means xNorth xSouth andlook at the bootstrap distribution. Does it meet theconditions for a bootstrap t confidence interval?(c) Report the bootstrap standard error and the 95%bootstrap t confidence interval.(d) Compare the bootstrap results with the usualtwo-sample t confidence interval.
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