Samples Were Drawn from Three Populations $n _ { 1 } = 9 , n _ { 2 } = 6$

question 29

Multiple Choice

Samples were drawn from three populations. The sample sizes were $n _ { 1 } = 9 , n _ { 2 } = 6$ , and $n _ { 3 } = 8$ . The sample means were $\bar { x } _ { 1 } = 1.75 , \bar { x } _ { 2 } = 1.29$ , and $\bar { x } _ { 3 } = 1.49$ . The sample standard deviations were $s _ { 1 } = 0.28 , s _ { 2 } = 0.44$ , and $s _ { 3 } = 0.27$ . The grand mean is $\overline { \mathrm { x } } = 1.539565$ . Compute the sum of squares SSE.

• A) 0.7919
• B) 0.3959
• C) 3.7611
• D) 2.1055

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Definitions:

Environment

The surroundings or conditions in which a person, animal, or plant lives or operates.

Natural Selection

A process by which organisms that are better adapted to their environment tend to survive and produce more offspring.

Synthetic Stimulant

A man-made substance designed to increase alertness, attention, and energy, often used as drugs.

Mild Hallucinogen

A substance that induces subtle alterations in perception, mood, and thought, without causing intense hallucinations or loss of reality.