In an Effort to Estimate the Mean Dollars Spent Per

question 77

Multiple Choice

In an effort to estimate the mean dollars spent per visit by customers of a food store, the manager has selected a random sample of 100 cash register receipts. The mean of these was $45.67 with a sample standard deviation equal to $12.30. Assuming that he wants to develop a 90 percent confidence interval estimate, which of the following is the margin of error that will be reported?

• A) About ±$2.02
• B) Nearly $50.20
• C) $1.645
• D) About $1.43

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Definitions:

Extraversion

A personality trait characterized by outgoingness, high energy, and sociability.

Fear Arousals

The emotional response triggered by perceived threats, often used in persuasive communication to motivate behavior change by highlighting potential dangers.

Persuasion

An effort by a source to change the beliefs or attitudes of a target person through the use of information or argument.

Conformity

Adherence by an individual to group norms so that behavior lies within the range of tolerable behavior.