Two Independent Samples of Sizes 40 and 50 Are Randomly $\mu$

question 54

Multiple Choice

Two independent samples of sizes 40 and 50 are randomly selected from two normally distributed populations. Assume that the population variances are known. In order to test the difference between the population means, µ $\mu$ ₁ - µF $\mu$ ₂, which of the following test statistics should be used?

• A) t-test
• B) Chi-square test
• C) Z-test
• D) None of these choices are correct.

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Definitions:

Duchenne Muscular Dystrophy

Genetic disorder that is characterized by a wasting of muscle tissue; displays an X-linked recessive pattern of inheritance.

Sex-Linked Diseases

Disorders that are determined by genes located on sex chromosomes, often affecting one sex more than the other.

Genotype

The genetic makeup of an organism, consisting of all the DNA and genes.

Dominant Trait

A trait that is expressed or visible when a gene variant (allele) is present, even when its counterpart allele is a different variant.