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.

---

Definitions:

Osmotic Pressure

The pressure required to prevent the flow of a pure solvent across a semipermeable membrane into a solution, related to the concentration of solutes.

Nephron Loop

Part of the kidney nephron extending from the proximal to the distal convoluted tubule, crucial in concentrating urine and reabsorbing water and salts.