Anita Cruz Recently Assumed Responsibility for a Large Investment Portfolio $\alpha$

question 4

Multiple Choice

Anita Cruz recently assumed responsibility for a large investment portfolio. She wonders whether industry sector influences investment objective. Her staff prepared the following contingency table from a random sample of 200 common stocks: Using $\alpha$ =.01, appropriate decision is ___.

• A) reject the null hypothesis and conclude the two variables are not independent
• B) reject the null hypothesis and conclude the two variables are independent
• C) do not reject the null hypothesis and conclude the two variables are not independent
• D) do not reject the null hypothesis and conclude the two variables are independent
• E) do nothing

---

Definitions:

Human Genome Project

an international scientific research project with the goal of determining the sequence of nucleotide base pairs that make up human DNA, and of identifying and mapping all of the genes of the human genome.

Repeated Sequences

DNA segments that are present multiple times within a genome, including both tandem repeats and interspersed repeats.

Nucleotides

Organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA, consisting of a nitrogenous base, a sugar, and one or more phosphate groups.

Microinjection

A technique used in molecular biology to deliver substances directly into cells by penetrating the cell membrane with a fine needle.