SCENARIO 12-18 A Consulting Firm That Surveyed Consumers' Holiday Shopping Behavior Found

question 157

Short Answer

SCENARIO 12-18
A consulting firm that surveyed consumers' holiday shopping behavior found that the percentage of
consumers from the U.S., Canada, and China who said that they planned to spend more on holiday
shopping were 40%, 34% and 72%, respectively. Random samples of size 150 are selected from each
of the three countries.
You want to test for evidence of a difference among the proportions across the three countries using
the 0.05 level of significance.
-Referring to Scenario 12-18, what is the value of the critical range for the Marascuilo procedure
to test for the difference in proportions between U.S. and Canada using a 0.05 level of
significance?

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Definitions:

Straightness

The condition of being free from curves, bends, or angles; linear alignment without deviation.

Cylindricity

A measure of how much an object's geometry deviates from a perfect cylinder, considering the roundness and straightness along its axis.

Symbol

A mark or sign used to represent an object, function, or process, often used in technical drawings and specifications.

Cylindricity

A three-dimensional geometric tolerance that specifies how much a cylindrical feature's actual profile can deviate from a perfect cylinder.