25.1% of days. Conduct a hypothesis test to determine if the proportion of days that the machine has downtime has changed from before, with a-0.10. Using this information, what is the test statistic in your analysis? Round intermediate calculations to four decimal places, and choose the closest choice to your answer. -2.24 -0.44 O-1.94 01.96 1.64

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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You are a process engineer for a company that manufactures widgets. A particular
machine at your company has some downtime during the day on 30.1% of days. You
decided to make some changes to how the machine is calibrated in an attempt to
reduce downtime. After monitoring the machine for 315 days after your changes
were implemented, you find that the machine had some downtime during the day on
25.1% of days. Conduct a hypothesis test to determine if the proportion of days that
the machine has downtime has changed from before, with a-0.10. Using this
information, what is the test statistic in your analysis? Round intermediate
calculations to four decimal places, and choose the closest choice to your answer.
-2.24
-0.44
O-1.94
1.96
1.64
Transcribed Image Text:You are a process engineer for a company that manufactures widgets. A particular machine at your company has some downtime during the day on 30.1% of days. You decided to make some changes to how the machine is calibrated in an attempt to reduce downtime. After monitoring the machine for 315 days after your changes were implemented, you find that the machine had some downtime during the day on 25.1% of days. Conduct a hypothesis test to determine if the proportion of days that the machine has downtime has changed from before, with a-0.10. Using this information, what is the test statistic in your analysis? Round intermediate calculations to four decimal places, and choose the closest choice to your answer. -2.24 -0.44 O-1.94 1.96 1.64
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