Early Morning Delivery Service guarantees delivery of small packages by 10:30 a.

Question

Early Morning Delivery Service guarantees delivery of small packages by 10:30 a.m. Of course, some of the packages are not delivered by 10:30 a.m. For a sample of 200 packages delivered each of the last 15 working days, the following numbers of packages were delivered after the deadline: 9, 14, 2, 13, 9, 5, 9, 3, 4, 3, 4, 3, 3, 8, and 4. (Round your answers to 3 decimal places.)

Early Morning Delivery Service guarantees delivery of small packages by 10:30 a.m. Of course, some of the packages are not delivered by 10:30 a.m. For a sample of 200 packages delivered each of the last 15 working days, the following numbers of packages were delivered after the deadline: 9, 14, 2, 13, 9, 5, 9, 3, 4, 3, 4, 3, 3, 8, and 4. (Round your answers to 3 decimal places.)

Explanation / Answer

p=totalpackage delievered after deadline./total package delievered =93/3000=0.031

b) 3*std error =0.0368

UCL =point estimate +3*std error =0.0678

LCL=point estimate -3*std error =0.0000

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