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

question 367

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 critical value of the randomized block F test for the
difference in the means at a level of significance of 0.05?

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Definitions:

Responsiveness

The quality of reacting quickly and positively to changes or to the needs, suggestions, or requests of others.

Sound

Audible frequencies that propagate through the air or another carrier and are perceptible when they make contact with a human or animal's ear.

Fetal Development

The stage of human growth within the womb from conception to birth.

Reflex Response

An automatic, involuntary reaction to a specific stimulus.