Use the Following to Answer the Question(s) Below

question 26

Multiple Choice

Use the following to answer the question(s) below.
Three brands of AAA batteries are compared to determine if differences in lifetime exist. Each brand is tested in four devices (TV remote, hand-held game, flashlight and digital camera) . The experiment is run once for each combination of brand and device. The twelve runs are ordered randomly. The time (in minutes) that each battery lasts under continuous usage is recorded. The partial ANOVA results are as follows:
-The P-value associated with this F-statistic associated with the brands is 0.128. Based on this, we can conclude that

• A) we should reject the null hypothesis.
• B) there is a difference in the mean lifetimes among the different brands.
• C) there is no significant difference in the mean lifetimes among the different devices.
• D) we should support the alternative hypothesis.
• E) there is no difference in the mean lifetimes among the different brands.

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Definitions:

Natural Selection

The process whereby organisms better adapted to their environment tend to survive and produce more offspring.

Biologists

Scientists who study living organisms and their relationship to the environment, including their structure, function, growth, and evolution.

Mutation

A new gene or combination of genes.

Psychological Processes

Encompass the functions of the mind, including cognition, emotion, perception, and behavioral patterns, integral to understanding human behavior.