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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Refer to Exercise 5.S.5. In a real greenhouse, what factors might tend to invalidate the assumption that each group of plants can be regarded as a random sample from the same population?
Exercise 5.S.5:
Suppose a botanist grows many individually potted eggplants, all treated identically and arranged in groups of four pots on the greenhouse bench. After 30 days of growth, she measures the total leaf area Y of each plant. Assume that the population distribution of Y is approximately normal with
 and
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(a) What percentage of the plants in the population will have leaf area between 750 cm2 and 850 cm2?
(b) Suppose each group of four plants can be regarded as a random sample from the population.What percentage of the groups will have a group mean leaf area between 750 cm2 and 850 cm2?
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