If the Population Standard Deviation of the Lifetime of Washing

question 75

Short Answer

If the population standard deviation of the lifetime of washing machines is estimated to be 1000 hours, how large a sample must be taken in order to be 95% confident that the margin of error will not exceed 100 hours?

---

Definitions:

Renewable Energy Sources

Energy sources that can be replenished and are considered environmentally friendly, such as solar, wind, hydroelectric, and geothermal power.

Resource-Constraint Problems

Challenges faced due to the limited availability of resources necessary to complete tasks or projects.

Sustainable Innovation

Innovation focused on creating new products or processes that meet current needs without compromising the ability of future generations to meet their needs.

Reducing Risks

Implementing strategies and measures to minimize potential harm or losses in various contexts, such as financial investments or business operations.