m06_0621

m06_0621 - Student's Name Homework Identification Number...

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Student's Name: Homework Identification Number: 0621 MINITAB Assignment 6 No hand-written work will be accepted for any MINITAB Assignment! 1. Consider a population of the charge life of a certain lithium ion battery for camcorders. Records show that the mean charge life for these batteries is 114.8 minutes and the standard deviation is 7.6 minutes. If you have a sample of 17 such batteries, what is the probability that mean charge life for the batteries in the sample will be more than 103.9 minutes? a) In any problem (not just this one), what must be true about the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? How does the sample size affect the sampling distribution of the sample mean? Explain your answer. Type your answer after this paragraph. Please use complete, coherent sentences. b) What are the mean and standard deviation of the sampling distribution of the sample mean? Copy all the commands you used and the response from MINITAB from the

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m06_0621 - Student's Name Homework Identification Number...

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