Question: Market data indicates that smartphone users are very concerned about the battery life of their smartphones. An experiment is conducted in which the battery life

Market data indicates that smartphone users are very concerned about the battery life of their smartphones. An experiment is conducted in which the battery life of a newly designed smartphone battery is compared to the battery life of an existing smartphone battery. The following table summarizes the results of the experiment.

Sample Size Mean (hours) Standard Deviation (hours) Design Existing 18.45 16.10 0.35 0.15 30 30 New

Completely analyze these data and indicate which battery design you prefer.

Sample Size Mean (hours) Standard Deviation (hours) Design Existing 18.45 16.10 0.35 0.15 30 30 New

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