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# The Mastic tree (Pistacia lentiscus) is used in

ISBN: 9780073401331 38

## Solution for problem 5E Chapter 6.7

Statistics for Engineers and Scientists | 4th Edition

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Problem 5E

The Mastic tree (Pistacia lentiscus) is used in reforestation efforts in southeastern Spain. The article “Nutrient Deprivation Improves Field Performance of Woody Seedlings in a Degraded Semi-arid Shrubland” (R. Trubata, J. Cortina, and A. Vilagrosaa, Ecological Engineering, 2011:1164–1173) presents a study that investigated the effect of adding slow release fertilizer to the usual solution on the growth of trees. Following are the heights, in cm, of 10 trees grown with the usual fertilizer (the control group), and 10 trees grown with the slow-release fertilizer (treatment). These data are consistent with the mean and standard deviation reported in the article. Can you conclude that the mean height of plants grown with slow-release fertilizer is greater than that of plants with the usual fertilizer?

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MODULE 15 -- BASIC COUNTING, PERMUTATIONS → 6.1 BASIC COUNTING ← The Product Rule: A procedure can be broken down into a sequence of two tasks. There are n w1ys to do the first task and n ways2to do the second task. Then there are n 1n 2ays to do the procedure. Example: How many bit strings of length seven are there 7 Solution: Since each of the seven...

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