SCENARIO 11-12 a Student Team in a Business Statistics Course Designed an Designed

question 115

Short Answer

SCENARIO 11-12
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 Scenario 11-12, what is the estimated relative efficiency?

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Definitions:

Stapes

The smallest bone in the human body, located in the middle ear, which plays a key role in transmitting sound vibrations to the inner ear.

Vestibule

An entrance or enclosed antechamber between the outside and the interior of a building, or a space or cavity at the beginning of a canal, like those of the nose or ear.

Vertigo

A sensation of spinning or dizziness, often caused by issues with the inner ear or the vestibular nerve.

Tinnitus

The hearing of sound when no external sound is present, often ringing in the ears.