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

question 195

True/False

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, the decision made at a 0.05 level of significance on the F test for the block effects implies that the blocking has been advantageous in reducing the experiment error.

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Definitions:

Osmosis

The movement of water molecules through a semipermeable membrane from a less concentrated solution to a more concentrated one.

One-Dimensional Fluids

A theoretical concept referring to fluids confined in a space that allows movement and interaction in only one dimension.

Glycoproteins

Proteins that have carbohydrate groups attached to the polypeptide chain, playing diverse roles in biological recognition processes.

Cholesterol

A waxy type of lipid, essential for the formation of cell membranes and synthesis of hormones, found in the bloodstream and cells.