TABLE 12-6 According to an Article in Marketing News, Fewer Checks Are

question 59

Short Answer

TABLE 12-6
According to an article in Marketing News, fewer checks are being written at the grocery store checkout 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 12-6, what is the expected number of shoppers who do not pay by check in year 3 if there is no difference in the proportion of shoppers who pay by check among the three years?

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Definitions:

4G

The fourth generation of broadband cellular network technology, succeeding 3G and offering increased internet speeds and higher data rates for mobile phones and devices.

Instant Messaging

A form of communication over the internet that allows two or more participants to send text messages in real-time.

Wi-Fi Direct

Wi-Fi Direct is a standard that allows Wi-Fi devices to connect to each other without requiring a wireless access point, enabling device-to-device connections.

WiMAX

Worldwide Interoperability for Microwave Access, a technology for broadband wireless networks providing high-speed internet access over long distances.