Independent Random Samples of Are Taken from Each of Two $\bar { x } _ { 1 }$

question 139

Multiple Choice

Independent random samples of are taken from each of two normally distributed populations.The relevant sample statistics are n₁ = 10,n₂ = 8, $\bar { x } _ { 1 }$
= 50, $\bar { x } _ { 2 }$
= 42,s₁= 5,and s₂ = 7.If we assume the population variances are equal,give a 95% confidence for $\mu _ { 1 } - \mu _ { 2 }$
)

• A)[2.01,13.99]
• B)[1.08,14.91]
• C)[3.51,12.49]
• D)[2.56,13.44]
• E)[4.62,11.38]

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Definitions:

Dizygotic Twins

Also known as fraternal twins, they develop from two separate eggs fertilized by two different sperm cells, leading to siblings with genetic similarities but not identical genomes.

Inherited Traits

Attributes, characteristics, or disorders that are genetically passed from parents to their offspring.

Living Environments

The various settings or places where individuals reside, which can significantly impact their physical, psychological, and social wellbeing.

Personality Traits

Enduring characteristics or qualities that describe an individual's consistent behaviors and attitudes.