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

question 172

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, the standard error of all possible sample proportions is ________.

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Definitions:

Regression Analysis

A statistical method used to model the relationship between a dependent variable and one or more independent variables.

Dependent Variable

In statistical modeling, this is the variable being tested and measured to see if it is affected by changes in the independent variables.

Cook's D

A statistic used in regression analysis to identify influential data points that can disproportionately affect the results of the regression.

Leverage

A measure of how far the values of the independent variables are from their mean values.