A Database May Be Used to Help People with All

question 77

Multiple Choice

A database may be used to help people with all of the following except ________.

• A) track which student is assigned to a particular advisor
• B) know the current inventory levels of products their company sells
• C) check on the estimated arrival time of an incoming flight at an airport
• D) look up their checking account balance over the Internet
• E) debug existing program code

Understand the concept and calculation of degrees of freedom in t-tests.

Formulate null hypotheses for dependent and independent samples.

Calculate and interpret the difference scores in dependent samples.

Identify and apply the correct critical values for t-tests based on sample size and significance levels.

---

Definitions:

Marginal Benefit

The maximum price a consumer will be willing to pay for an additional unit of a product. It is the dollar value of the consumer’s marginal utility from the additional unit, and therefore it falls as consumption increases.

Opportunity Cost

The loss of potential gain from other alternatives when one alternative is chosen over others.

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount they actually do pay.

Price Elasticity

The determination of how price alterations influence the market demand for a commodity.