TABLE 12-13 According to an Article in Marketing News, Fewer Checks Are

question 43

Multiple Choice

TABLE 12-13
According to an article in Marketing News, fewer checks are being written at grocery store checkout stands than in the past. To determine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.

-Referring to Table 12-13, what is the correct conclusion?

• A) There is enough evidence that the proportions are all different in the 3 years.
• B) There is not enough evidence that the proportions are all different in the 3 years.
• C) There is enough evidence that at least two of the proportions are not equal.
• D) There is not enough evidence that at least two of the proportions are not equal.

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Definitions:

Anvil

In non-biological contexts, an anvil is a heavy iron block used in metalworking. In the context of the ear, it refers to the incus, a small anvil-shaped bone in the middle ear that helps transmit sound vibrations.

Stirrup

The stirrup, or stapes, is a small bone in the middle ear that plays a key role in the transmission of sound vibrations to the inner ear.

Middle Ear

A part of the ear between the eardrum and the inner ear, containing three small bones that help transmit sound.

Sound Wave

A type of wave that is an audible vibration that travels through air or other media and is perceived by the human ear.