Based on Data from Two Very Large Independent Samples, Two

question 61

Multiple Choice

Based on data from two very large independent samples, two students tested a hypothesis about equality of population means using a = 0.05. One student used a one-tail test and rejected the null hypothesis, but the other used a two-tail test and failed to reject the null. Which of these might have been their calculated value of t?

• A) 1.25
• B) 2.25
• C) 1.75
• D) 1.50
• E) 2.50

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Definitions:

Genotype

The genetic makeup of an organism, consisting of all the genes and alleles present in its DNA.

Genetic Constitution

The fundamental DNA sequence of an organism determining inherited characteristics.

Acrosomal Reaction

A process in which the enzymes of the sperm's acrosome are released to penetrate an egg and facilitate fertilization.

Epididymis

Elongated structure connected to the posterior surface of the testis, which consists of the head, body, and tail; site of storage and maturation of the spermatozoa.