A local pizza store knows the mean amount of time it takes them to deliver an order is 45 minutes after the order is placed. The manager has a new system for processing delivery orders, and they want to test if it changes the mean delivery time. They take a sample of delivery orders and find their mean delivery time is 48 minutes. Let u represent the mean delivery time under the new system. What are appropriate hypotheses for their significance test?

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Chapter1: Combinatorial Analysis
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A local pizza store knows the mean amount of time it takes them to deliver an order is 45 minutes after the
order is placed. The manager has a new system for processing delivery orders, and they want to test if it changes
the mean delivery time. They take a sample of delivery orders and find their mean delivery time is 48 minutes.
Let u represent the mean delivery time under the new system.
What are appropriate hypotheses for their significance test?
Transcribed Image Text:A local pizza store knows the mean amount of time it takes them to deliver an order is 45 minutes after the order is placed. The manager has a new system for processing delivery orders, and they want to test if it changes the mean delivery time. They take a sample of delivery orders and find their mean delivery time is 48 minutes. Let u represent the mean delivery time under the new system. What are appropriate hypotheses for their significance test?
Ho : µ = 45 minutes
Ha:µ#45 minutes
Ho : µ = 45 minutes
Но и
Ha : µ ± 48 minutes
Ho :µ = 48 minutes
C
Ha:µ#45 minutes
Но : и 3 48 minutes
Ha:µ748 minutes
A,
Transcribed Image Text:Ho : µ = 45 minutes Ha:µ#45 minutes Ho : µ = 45 minutes Но и Ha : µ ± 48 minutes Ho :µ = 48 minutes C Ha:µ#45 minutes Но : и 3 48 minutes Ha:µ748 minutes A,
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