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

question 169

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 for testing the block effects at a 0.05 level
of significance?

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Definitions:

High Status

Occupying a position of superior rank, prestige, or respect within a social hierarchy.

Foot In The Door

A persuasion technique where a small request is made first to increase the likelihood of agreement to a larger request later.

Lowballing

A persuasive technique in which an initially favorable offer is made to gain agreement, but then terms are made less advantageous to the target.

Idiosyncrasy Credit

The leeway or toleration a group affords to a member with established credibility to deviate from group norms without severe sanction.