Data Interview Qs - iPhone power button quality

InterviewQs

iPhone power button quality

Statistics Significance Testing Case Study

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Hi, 

Assume you are reporting on Apple's hardware quality and you are tasked with understanding the time to failure for the new iPhone's power button. You worked with a team to run a paired t-test with 1,000 new iPhones and 1,000 iPhones from the previous generation.

The results of your test show that the new iPhone's power button's mean time to failure is 50% lower than the last generation's iPhone, with a p-value of 0.02. How would you describe the experiment and the result to a non-technical stakeholder?



 

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