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

question 48

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, 95% of the samples proportions symmetrically around the population proportion will have between ________ % and ________ % of the customers who take advantage of online customer service.

---

Definitions:

Observations

Data collected during an experiment or study, often recorded as evidence or for analysis.

Sum

In mathematics, the sum represents the total or result of adding two or more numbers or quantities together.

Measure of Variability

A measure of variability quantifies the spread of data points in a dataset, indicating how much the data values differ from each other.

Bell Shaped Distribution

A type of distribution in which the frequency of data values is highest in the middle, resembling the shape of a bell.