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

question 166

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 null hypothesis for the randomized block F test for the difference in the means should be rejected at a 0.05 level of significance.

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Definitions:

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a pause, without new learning sessions.

Generalization

Drawing broad conclusions from specific instances; in psychology, it refers to the process of applying findings from a study to larger population segments.

Flooding

A psychological technique used in therapy to help individuals face their fears by exposing them to high levels of emotional stimuli.

Systematic Desensitization

A therapeutic method used to reduce phobia or anxiety through gradual exposure to the feared object or situation combined with relaxation techniques.