TABLE 7-7 Online Customer Service Is a Key Element to Successful Online

question 111

Short Answer

TABLE 7-7
Online customer service is a key element to successful online retailing. According to a marketing survey, 37.5% of online customers take advantage of the online customer service. Random samples of 200 customers are selected.
-Referring to Table 7-7, 90% of the samples proportions symmetrically around the population proportion will have between ________ % and ________ % of the customers who take advantage of online customer service.

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Definitions:

YEAR Function

A computing or spreadsheet function that extracts the year part from a date representation.

DATEVALUE

A function in spreadsheet programs that converts a date in the form of text to a serial number representing the date.

TODAY Function

A function in many spreadsheet programs that returns the current date, updating each time the document is opened or recalculated.

Data Tables

Structures in software and databases designed to organize, store, and manage data in rows and columns for easy retrieval and analysis.