The manager drew a sample of 30 delivery time in June and found that the mean delivery time is 17 minutes with standard deviation of 2.3 mins and a sample of 30 in August has mean and standard deviation of 17.5 minutes and 2 minutes. Do a hypothesis testing to determine if the time difference is significant or not. Use 95 per cent confidence level

The manager drew a sample of 30 delivery time in June and found that the mean delivery time is 17 minutes with standard deviation of 2.3 mins and a sample of 30 in August has mean and standard deviation of 17.5 minutes and 2 minutes. Do a hypothesis testing to determine if the time difference is significant or not. Use 95 per cent confidence level

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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