An Electronics Firm Produces Two Models of Pocket Calculators: the A-100

question 71

Multiple Choice

An electronics firm produces two models of pocket calculators: the A-100 (A) ,which is an inexpensive four-function calculator,and the B-200 (B) ,which also features square root and percent functions.Each model uses one (the same) circuit board,of which there are only 2,500 available for this week's production.Also,the company has allocated a maximum of 800 hours of assembly time this week for producing these calculators,of which the A-100 requires 15 minutes (.25 hours) each,and the B-200 requires 30 minutes (.5 hours) each to produce.The firm forecasts that it could sell a maximum of 4,000 A-100's this week and a maximum of 1,000 B-200's.Profits for the A-100 are $1.00 each,and profits for the B-200 are $4.00 each.For the production combination of 1,400 A-100's and 900 B-200's,which resource is "slack" (not fully used) ?

• A)Circuit boards (only)
• B)Assembly time (only)
• C)Both circuit boards and assembly time
• D)Neither circuit boards nor assembly time
• E)Cannot be determined exactly

Apply chi-square tests to real-world research scenarios to assess independence between variables.

Interpret results from chi-square tests to draw meaningful conclusions.

Differentiate between chi-square tests of independence and other statistical tests.

Understand the nature of contingency tables and their use in chi-square tests.

---

Definitions:

Collagenous Fibers

Strong, flexible fibers made of collagen that are a major component of connective tissue in the body.

Ligaments

Strong, fibrous tissues that connect bones to other bones, providing stability and support in joints.

Superficial Portion

The part of a structure or organ that is closest to the surface of the body.

Pseudostratified Columnar

A type of epithelial tissue with cells of varying heights that appear stratified but each cell touches the basal lamina.