A Research Organization Wishes to Determine Whether Four Brands of Batteries

question 55

Essay

A research organization wishes to determine whether four brands of batteries for transistor radios perform equally well. Three batteries of each type were randomly selected and installed in the three test radios. The number of hours of use for each battery is given below.
a.Use the analysis of variance procedure for completely randomized designs to determine whether there is a significant difference in the mean useful life of the four types of batteries. (Ignore the fact that there are different test radios.) Use the .05 level of significance and be sure to construct the ANOVA table.
b.
b.Now consider the three different test radios and carry out the analysis of variance procedure for a randomized block design. Include the ANOVA table.
c.Compare the results in Parts a and

---

Definitions:

Stewardship Worldview

A philosophy that emphasizes responsible management and care for the natural environment and resources.

Economic Growth

The increase in the production of goods and services in an economy over a period of time, typically measured by GDP.

Ethical Responsibility

The moral duty to act correctly and make decisions that are good and right for society, the environment, and future generations.

Stewardship

The act of managing or looking after the wellbeing of something, often relating to environmental conservation and the responsible use of resources.