In a Tools Rental Business, a Form Is Used to Reserve

question 40

Multiple Choice

In a tools rental business, a form is used to reserve large construction tools for customers (i.e. subcontractors working for a construction company) . The following fields appear on the form:
(tool information)
Item#
Type
Descr
Size
Cost/Day
Mfg (Tool manufacturer)
MfgAddr (Manufacturer address)
Mfg phone
(Customer and reservation information)
rental# (rental order number for the tool, unique for a given tool)
CustId
CustName
CustAddress
CustPhone
Checkout_date (future date for a future reservation or past date for a current rental)
Days (Expected length of rental)
ConsName (Construction Company Name)
ConsAddr (Construction Company Address)
Discount (specific to a construction company)


-The form primary key is:

• A) Rental#
• B) Item#
• C) CustId
• D) Mfg

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Definitions:

Student T Distribution

A probability distribution used in statistics for estimating population parameters when the sample size is small and the population variance is unknown.

Normal Distribution

Exhibiting symmetry around the mean, this probability distribution reveals that there are more occurrences close to the mean than far away from it.

Chi-squared Distribution

A statistical distribution that is used to describe the distribution of a sum of squared random variables, often used in hypothesis testing.

Degrees of Freedom

The number of independent pieces of information used in the calculation of a statistic, typically the size of the data set minus the number of parameters estimated.