TABLE 11-7 a Student Team in a Business Statistics Course Designed an Designed

question 181

Short Answer

TABLE 11-7
A student team in a business statistics course designed an experiment to investigate whether the brand of bubblegum used affected the size of bubbles they could blow. To reduce the person-to-person variability, the students decided to use a randomized block design using themselves as blocks. Four brands of bubblegum were tested. A student chewed two pieces of a brand of gum and then blew a bubble, attempting to make it as big as possible. Another student measured the diameter of the bubble at its biggest point. The following table gives the diameters of the bubbles (in inches) for the 16 observations.

-Referring to Table 11-7, is it appropriate to use the Tukey multiple comparison procedure based on the test result above?

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Definitions:

Xylem

The vascular tissue in plants that conducts water and dissolved nutrients upward from the root and helps form the woody element in the stem.

Dissolved Sugars

Sugars that have been dissolved in a solvent, often water, making them an important energy source for organisms at the cellular level.

Stomata

Small openings on the surfaces of leaves and stems through which gases and water vapor pass.

Companion Cells

Plant cells that are part of the phloem tissue and assist in the distribution of nutrients throughout the plant.