Ask Question
Yesterday, 18:50

A manufacturer of computer printers purchases plastic ink cartridges from a vendor. When a large shipment is received, a random sample of 235 cartridges is selected, and each cartridge is inspected. If the sample proportion of defective cartridges is more than 0.02, the entire shipment is returned to the vendor. (a) What is the approximate probability that a shipment will be returned if the true proportion of defective cartridges in the shipment is 0.05? (b) What is the approximate probability that a shipment will not be returned if the true proportion of defective cartridges in the shipment is 0.10?

+5
Answers (1)
  1. Yesterday, 19:18
    0
    Note, that the population proportion is p=0.05

    So for n=200n the mean of pˆ is,

    μpˆ=p=0.05

    Therefore, for n=200 the standard deviation of pˆ is,

    σpˆ=√ (0.05) (1-0.05) / 200

    = √ (0.05) (0.95) / 200

    = √0.0475/200

    =√0.0002375

    ≈0.0154
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A manufacturer of computer printers purchases plastic ink cartridges from a vendor. When a large shipment is received, a random sample of ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers