TABLE 7-4 According to a Survey, Only 15% of Customers Who Visited

question 144

Short Answer

TABLE 7-4
According to a survey, only 15% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected.
-Referring to Table 7-4, what is the probability that a random sample of 50 will have at least 30% of customers who will make a purchase after visiting the web site?

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Definitions:

William Stern

A German psychologist who is best known for developing the concept of the intelligence quotient (IQ) and for his significant contributions to differential psychology.

Intelligence Quotient

A measure of a person's reasoning ability compared to the statistical norm or average for their age, calculated using standardized tests.

Chronological Age

The exact age of an individual measured in years from the date of birth to the current date, usually used as a measure in developmental studies.

Mental Age

A measure of an individual's mental attainment as compared to the average mental ability of individuals of a specific chronological age.