Use the Following to Answer the Question(s) Below

question 25

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 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 a difference in the mean lifetimes among the different devices.
• D) There is no significant interaction effect.
• E) There is no difference in the mean lifetimes among the different brands.

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