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I have been given 100 new lithium ion batteries that will be used in a new cell phone. The batteries are expected to power the phones for 75 minutes...
. I have been given 100 new lithium ion batteries that will be used in a new cell phone. The batteries are expected to power the phones for 75 minutes of continuous video recording.The company that is selling the phones wants to know if the battery company was giving them an accurate estimate. If the batteries on average do not last 75 minutes the company will return them to the battery manufacturer. If on average the batteries last for more than 75 minutes, the company will raise the price of the phone. In order to advise the phone vendor, I timed how long each of the 100 batteries lasted. The sample mean was 73.2 minutes. The sample standard deviation was 5 minutes. The C.L. is chosen to be .95. Construct a C.I. for the population mean.Interpret the above confidence interval. Look at page 115 in Agresti. Do not write more than 3 sentences.Looking at the C.I. what decision should I make?
I have been given 100 new lithium ion batteries that will be used in a new cell phone. The batteries areexpected to power the phones for 75 minutes of continuous video recording.The company that...