Hypothesis Testing Assignment

Assume you are an Intern at Consumer Reports Magazine assigned to evaluate
the claim from Apple that the average battery life length for the new IPhone is at
least 8 hours on 4G with standard usage. You find all the IPhone distribution
centers and select five IPhones from each totaling 25 IPhones for your sample.
You test the batteries of your total of 25 phones and get the following results for
battery length before charging was required (in hours):
4.5, 6, 8, 5.5, 7, 5, 7.7, 6, 8.5, 7.5, 5, 9, 8, 6.5, 5,
7, 8, 6.5, 5.5, 6, 6.5, 8.5, 5, 5.5, 7.5

Write a 2 paragraph report (like what you might read in a Consumer Reports
magazine article) that summarizes your Hypothesis Testing. Include the following
information in your report:
a) The type of sampling method you used
b) The mean, median and standard deviation of your sample
c) a description of the process you followed when conducting your Hypothesis test (what type of test
you conducted, whether it was right, left or two tailed, and what the p-value was)
d) a Final decision about Apple’s claim based on your research.

 
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