a) A light bulb manufacturer guarantees that the mean life of its brand of light bulb is 750 hours. If a random sample of 36 light bulbs has a mean life of 738 hours with a standard deviation of 43 hours, do you have enough evidence to reject the manufacturer’s claim? Use symbols and words to express your answer. b) Construct a 95% confidence interval for the mean life of its brand of light bulb based on the sample results in part a. Use symbols and words to express your answer.

a) A light bulb manufacturer guarantees that the mean life of its brand of light bulb is 750 hours. If a random sample of 36 light bulbs has a mean life of 738 hours with a standard deviation of 43 hours, do you have enough evidence to reject the manufacturer’s claim? Use symbols and words to express your answer. b) Construct a 95% confidence interval for the mean life of its brand of light bulb based on the sample results in part a. Use symbols and words to express your answer.

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Description: a) A light bulb manufacturer guarantees that the mean life of its brand of lightbulb is 750 hours. If a random sample of 36 light bulbs has a mean life of738 hours with a standard deviation of 43 hours, do you have enoughevidence to reject the manufa

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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