SCENARIO 9-3
an Appliance Manufacturer Claims to Have Developed a Compact

question 143

Short Answer

SCENARIO 9-3
An appliance manufacturer claims to have developed a compact microwave oven that consumes a
mean of no more than 250 W. From previous studies, it is believed that power consumption for
microwave ovens is normally distributed with a population standard deviation of 15 W. A consumer
group has decided to try to discover if the claim appears true. They take a sample of 20 microwave
ovens and find that they consume a mean of 257.3 W.
-Referring to Scenario 9-3, the appropriate hypotheses to determine if the manufacturer's claim appears reasonable are: a) $H _ { 0 } : \mu = 250$ versus $H _ { 1 } : \mu \neq 250$
b) $H _ { 0 } : \mu \geq 250$ versus $H _ { 1 } : \mu < 250$
c) $H _ { 0 } : \mu \leq 250$ versus $H _ { 1 } : \mu > 250$
d) $H _ { 0 } : \mu \geq 257.3$ versus $H _ { 1 } : \mu < 257.3$

---

Definitions:

Human Capital

The skills, knowledge, and experience possessed by an individual or workforce, viewed in terms of their value or cost to an organization.

Human Capital

Represents the skills, knowledge, and experience possessed by an individual or population, viewed in terms of their value or cost to an organization or country.

Compensating Differential

A variation in pay or wages that arises to compensate workers for differences in the desirability of a job, such as working conditions or job location.

Labor Markets

The supply and demand for labor, where employers seek workers and individuals seek employment.