Question
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
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
summarize your Hypothesis Testing. Include the following information:
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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