State the Proper Forms of Hypotheses for Two-Sample Hypothesis Tests

question 4

Multiple Choice

State the proper forms of hypotheses for two-sample hypothesis tests.
-Which of the following Excel tools is used for a two-sample test for equality of variances?

• A) Excel F-test Two-sample for variances
• B) Excel z-test: Two-sample for means
• C) Excel t-test: Two-sample assuming unequal variances
• D) Excel t-test: Two-sample assuming equal variances

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Definitions:

Genetic Drift

A mechanism of evolution that causes random fluctuations in the frequency of alleles in a population, especially in small populations.

Mutation

A permanent alteration in the DNA sequence that makes up a gene, which can result in a change in the phenotype of an organism.

Reproductive Isolating Mechanisms

Reproductive isolating mechanisms are biological features of organisms that prevent species from interbreeding, thereby maintaining species separateness.

Interbreeding

The mating or crossing of two individuals from different populations, species, or varieties, leading to the production of offspring.