A random sample of 400 computer units has been selected from a large population of computers. Apparently 12 units declared damaged.

1. A random sample of 400 computer units has been selected from a large population of computers. Apparently 12 units declared damaged. Whether the above sample results is proof that the percentage of damaged computers in the population is more than 2%, the production process must be improved. Conversely, if the percentage of damage is only 2% or less, then the production process does not need to be repaired. Use Alfa 0.05

• Write wal hypotheses and alternative hypotheses

• Explain your conclusions

Leave a Reply