5.Medical researchers have developed a new artificial heart constructed primarily of titanium and plastic. The heart will last and operate almost indefinitely once it is implanted in the patient's body, but the battery pack needs to be recharged about every 8 hours. A random sample of 60 battery packs is selected and subjected to a life test. The average life of these batteries is 8.01 hours. Assume that battery life is normally distributed with standard deviation = 0.15 hour. The claim is that mean battery life exceeds 8 hours. Use = 0.01.

5.1 (2 points) Find the P-value rounded to 6 decimal places (using Microsoft Excel.)

5.2 (2 points) Is there evidence to support the claim? Explain by constructing a one-sided confidence bound on the mean life, rounded to 6 decimal places (using Microsoft Excel.)