A Researcher Has Developed the Regression Equation Y = 2

question 21

Multiple Choice

A researcher has developed the regression equation y = 2.164 + 1.3657x, where n = 6, the mean of x is 8.667, S_xx = 89.333, and S_e = 3.44. The researcher wants to test if the slope is significantly positive, and he chooses a significance level of 0.05. The observed t value is ___.

• A) 3.752
• B) 3.852
• C) 3.972
• D) 3.985
• E) 3.995

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Definitions:

Founder Effect

After a small group of individuals found a new population, allele frequencies in the new population differ from those in the original population.

Limited Gene Pool

Refers to a small variety of genes in a population, which can lead to decreased genetic diversity and increased susceptibility to diseases or genetic abnormalities.

DNA Sequence

The precise order of nucleotides within a DNA molecule, which determines genetic information.