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Ten observations were selected from each of 3 populations, and an analysis of variance was performed on the data. The following are the results:
a.Using = .05, test to see if there is a significant difference among the means of the three populations.
b.If in Part a you concluded that at least one mean is different from the others, determine which mean is different. The three sample means are
= 24.8,= 23.4, and= 27.4. Use Fisher's LSD procedure and let = .05.
Negative
A term often used to describe the absence of a certain condition or the reversal of a normal or positive state.
Secular Trend
A long-term trend or pattern observed in data, which is not influenced by seasonal, cyclical, or irregular factors.
Puberty
The developmental phase in which children mature sexually and physically into adults, marked by hormonal changes and growth.
Developed Countries
Nations with high levels of economic development, typically characterized by significant industrialization, a high standard of living, and advanced technological infrastructure.
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