Question: Q4_WEEK2 Consider the problem below. Show the 5-step solution of hypothesis testing. A manufacturer of cellular phone batteries claims that the mean life of his

Q4_WEEK2 Consider the problem below. Show the 5-step solution of hypothesis testing. A manufacturer of cellular phone batteries claims that the mean life of his products lasts for 26 hours with the standard deviation of 5 hours. Mr. Co, a regular customer randomly tested 35 of their batteries. He found out that the average life is 24.3 hours. Is the claim of the company true? Use a=5%

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