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

question 212

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 randomized block F test is valid only if the population of diameters is normally distributed for the 4 brands.

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Definitions:

System 2

A term often associated with dual-process theories of mind, representing the analytical, deliberate, and logical mode of thinking.

Framing Effects

Cognitive biases where people's decisions are influenced by the way information is presented, rather than just the information itself.

Anchoring

Anchoring is a psychological phenomenon wherein an individual relies too heavily on an initial piece of information, or 'anchor,' to make subsequent decisions.

Heuristics

Simple, efficient rules, either hard-coded by evolutionary processes or learned, which help in making decisions, forming judgments, or solving problems.