A Fund Manager Wants to Know If It Is Equally

question 52

Multiple Choice

A fund manager wants to know if it is equally likely that the Dow Jones Industrial Average will go up each day of the week.For each day of the week,the fund manager observes the following number of days when the Dow Jones Industrial Average goes up. Using the critical value approach,the decision and conclusion are

• A) reject the null hypothesis;not all of the proportions are the same
• B) reject the null hypothesis;all of the proportions are not the same
• C) do not reject the null hypothesis;all of the proportions are the same
• D) do not reject the null hypothesis;we cannot conclude that not all of the proportions are the same

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Definitions:

Secondary Growth

This is the process in plants that results in the thickening of stems and roots, mainly due to the activity of the vascular cambium and cork cambium.

Xylem

The vascular tissue in plants responsible for the conduction of water and nutrients from the roots to other parts of the plant.

Palisade Mesophyll

A layer of closely packed photosynthetic cells under the epidermis in leaves, responsible for the absorption of light necessary for photosynthesis.

Spongy Mesophyll

A layer of loosely arranged cells in a plant leaf, facilitating gas exchange and containing chloroplasts for photosynthesis.