A Random Sample of 82 Customers,who Visited a Department Store,spent

question 18

Short Answer

A random sample of 82 customers,who visited a department store,spent an average of $71 at this store.Suppose the standard deviation of expenditures at this store is = $19.The 98% confidence interval for the population mean (rounded to two decimal places)is:

---

Definitions:

Cognitive Schemas

Mental frameworks or structures that help individuals organize and interpret information.

Generalizations

The process of forming broad concepts or beliefs based on specific instances or experiences.

Stereotypes

Schemas that allow for easy, fast processing of information about people, events, or objects, based on their membership in particular groups.

Abstract Mental Concept

The ability to understand ideas that are not tied to concrete physical objects or experiences.